List of numbers Mathematics portal 10,000,000,000,000 ( ten trillion on the short scale; ten billion on the long scale; ten thousand billion ; ten million million ) is the natural number following 9,999,999,999,999 and preceding 10,000,000,000,001. It is known as 10000 arab, 100 kharab, 10 lakh crore , or 1 nil in the Indian numbering system. Properties and usage 10,000,000,000,000 has the following properties and usage: It is even , composite , abundant , polite , practical , frugal , and regular . It is also a perfect power and a harshad number . It is written in scientific notation as 1 × 10 13 or 10 13 ( 1E+13 or simply 1E13 in E notation ). It has a total of 196 divisors (182 even, 14 odd). All divisors are displayed below: 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 625, 640, 800, 1000, 1024, 1250, 1280, 1600, 2000, 2048, 2500, 2560, 3125, 3200, 4000, 4096, 5000, 5120, 6250, 6400, 8000, 8192, 10000, 10240, 12500, 12800, 15625, 16000, 20000, 20480, 25000, 25600, 31250, 32000, 40000, 40960, 50000, 51200, 62500, 64000, 78125, 80000, 100000, 102400, 125000, 128000, 156250, 160000, 200000, 204800, 250000, 256000, 312500, 320000, 390625, 400000, 500000, 512000, 625000, 640000, 781250, 800000, 1000000, 1024000, 1250000, 1280000, 1562500, 1600000, 1953125, 2000000, 2500000, 2560000, 3125000, 3200000, 3906250, 4000000, 5000000, 5120000, 6250000, 6400000, 7812500, 8000000, 9765625, 10000000, 12500000, 12800000, 15625000, 16000000, 19531250, 20000000, 25000000, 25600000, 31250000, 32000000, 39062500, 40000000, 48828125, 50000000, 62500000, 64000000, 78125000, 80000000, 97656250, 100000000, 125000000, 128000000, 156250000, 160000000, 195312500, 200000000, 244140625, 250000000, 312500000, 320000000, 390625000, 400000000, 488281250, 500000000, 625000000, 640000000, 781250000, 800000000, 976562500, 1000000000, 1220703125, 1250000000, 1562500000, 1600000000, 1953125000, 2000000000, 2441406250, 2500000000, 3125000000, 3200000000, 3906250000, 4000000000, 4882812500, 5000000000, 6250000000, 7812500000, 8000000000, 9765625000, 10000000000, 12500000000, 15625000000, 16000000000, 19531250000, 20000000000, 25000000000, 31250000000, 39062500000, 40000000000, 50000000000, 62500000000, 78125000000, 80000000000, 100000000000, 125000000000, 156250000000, 200000000000, 250000000000, 312500000000, 400000000000, 500000000000, 625000000000, 1000000000000, 1250000000000, 2000000000000, 2500000000000, 5000000000000, 10000000000000 The sum of all its divisors, including itself, is 24,998,474,116,998. It has an Euler totient of 4,000,000,000,000, and an aliquot sum of 14,998,474,116,998. There are a total of 346,065,536,839 positive primes less than it. [ 1 ] Below is the list of basic calculations of 10,000,000,000,000: 10,000,000,000,000 x {\displaystyle \scriptstyle {\sqrt[{\text{x}}]{\text{10,000,000,000,000}}}} 10,000,000,000,000 was used in Banknotes of Zimbabwe: 2008 banknote series circulated due to the intense hyperinflation in Zimbabwe during the 2008-2009 period. 39,375,254,020,492 dollars of US debt as of July 5, 2026. [ 2 ] Selected 14-digit numbers (10,000,000,000,001–99,999,999,999,999) 10,000,000,000,001 to 19,999,999,999,999 10,000,000,000,037 : smallest 14-digit prime number [ 3 ] 10,000,002,437,316 : smallest 14-digit triangular number , 4,472,136th triangular number [ 4 ] [ 5 ] 10,153,507,819,457 : 177th Markov number [ 6 ] 10,445,360,463,871 : 38th Woodall number [ 7 ] 10,610,209,857,723 : 64th Fibonacci number 11,038,251,159,312 : number of 51-bead necklaces (turning over is allowed) where complements are equivalent [ 8 ] 11,111,111,111,111 : repunit 11,258,999,739,560 : number of 50-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed [ 9 ] 13,046,940,568,625 : number of series-reduced planted trees with 48 nodes [ 10 ] 13,432,403,613,621 : number of secondary structures of RNA molecules with 37 nucleotides [ 11 ] 13,933,569,346,707 : 32nd Motzkin number [ 12 ] 13,974,537,376,800 : 75th superabundant number [ 13 ] 14,173,019,355,266 : 178th Markov number 14,235,090,298,445 : 179th Markov number 14,622,039,889,385 : 180th Markov number 15,988,960,048,321 : 181st Markov number 17,167,680,177,565 : 65th Fibonacci number, 182nd Markov number 18,367,353,072,152 : 26th Catalan number [ 14 ] 18,632,716,502,400 : 76th superabundant number 18,696,424,380,481 : 183rd Markov number 19,374,186,136,140 : 41st Wedderburn-Etherington number [ 15 ] 19,696,509,177,019 : 16th alternating factorial [ 16 ] 20,000,000,000,000 to 29,999,999,999,999 20,922,789,888,000 = 16 ! 20,922,789,888,136 : 16th factoriangular number [ 17 ] 21,246,581,423,810 : 184th Markov number 21,300,003,689,580 : 36th Pell number [ 18 ] 21,440,476,741,631 : 39th Woodall number 21,651,955,485,304 : number of 52-bead necklaces (turning over is allowed) where complements are equivalent 22,076,468,764,192 : number of 51-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed 22,222,222,222,222 : repdigit 22,592,065,572,301 : 185th Markov number 24,351,056,611,103 : number of (unordered, unlabeled) rooted trimmed trees with 39 nodes [ 19 ] 26,500,373,448,281 : 186th Markov number 27,673,060,569,305 : number of series-reduced planted trees with 49 nodes 27,777,890,035,288 : 66th Fibonacci number 27,949,074,753,600 : 77th superabundant number 30,000,000,000,000 to 39,999,999,999,999 30,901,824,368,813 : 187th Markov number 31,801,503,090,601 : 188th Markov number 32,607,253,879,200 : 78th superabundant number 33,333,333,333,333 : repdigit 33,843,022,209,066 : number of secondary structures of RNA molecules with 38 nucleotides 36,332,699,889,481 : 189th Markov number 38,596,477,083,550 : number of square (0,1)-matrices without zero rows and with exactly 12 entries equal to 1 [ 20 ] 40,000,000,000,000 to 49,999,999,999,999 40,002,464,776,083 : 33rd Motzkin number 40,081,787,109,376 : 25th automorphic number [ 21 ] 42,486,822,491,890 : number of 53-bead necklaces (turning over is allowed) where complements are equivalent 43,303,843,861,744 : number of 52-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed 43,520,999,798,747 : 50th repfigit [ 22 ] 43,980,465,111,039 : 40th Woodall number 44,444,444,444,444 : repdigit 44,945,570,212,853 : 67th Fibonacci number, 190th Markov number 46,127,828,641,049 : 191st Markov number 46,384,328,517,112 : 42nd Wedderburn-Etherington number 47,574,827,600,981 : 21st Schröder–Hipparchus number [ 23 ] 48,795,987,025,021 : 192nd Markov number 50,000,000,000,000 to 59,999,999,999,999 51,011,754,393,600 = 26 !! 51,422,757,785,981 : 37th Pell number, 193rd Markov number 55,555,555,555,555 : repdigit 55,898,149,507,200 : 79th superabundant number 57,850,602,535,042 : 194th Markov number 58,734,306,828,191 : number of series-reduced planted trees with 50 nodes 59,918,212,890,625 : 26th automorphic number 60,000,000,000,000 to 69,999,999,999,999 60,941,642,779,903 : number of (unordered, unlabeled) rooted trimmed trees with 40 nodes 65,082,055,350,517 : 195th Markov number 65,214,507,758,400 : 80th superabundant number, 19th superior highly composite number [ 24 ] 66,666,666,666,666 : repdigit 67,082,333,460,610 : 196th Markov number

68,275,077,901,156 : number of posets with 15 unlabeled elements [ 25 ] 69,533,550,916,004 : 27th Catalan number 70,000,000,000,000 to 79,999,999,999,999 72,723,460,248,141 : 68th Fibonacci number 73,224,462,646,361 : 197th Markov number 74,596,893,730,427 : 51th repfigit 77,777,777,777,777 : repdigit 80,000,000,000,000 to 89,999,999,999,999 80,902,026,460,669 : 198th Markov number 82,561,235,448,866 : 199th Markov number 83,400,061,453,514 : number of 54-bead necklaces (turning over is allowed) where complements are equivalent 84,973,577,874,916 : number of 53-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed 85,349,327,734,485 : number of secondary structures of RNA molecules with 39 nucleotides 88,888,888,888,888 : repdigit 90,000,000,000,000 to 99,999,999,999,999 90,159,953,477,631 : 41st Woodall number 93,139,301,545,921 : 200th Markov number 97,295,849,958,669 : 52nd repfigit 97,568,760,404,309 : 201st Markov number 97,821,761,637,600 : 81st superabundant number 99,999,999,999,973 : largest 14-digit prime number [ 26 ] 99,999,999,999,999 : largest 14-digit number, repdigit Long and short scales Names of large numbers Orders of magnitude (numbers) ↑ Sloane, N. J. A. (ed.). "Sequence A006880 (Number of primes less than 10^n)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ "Fiscal Data Explains the National Debt" . fiscaldata.treasury.gov . Retrieved 2026-07-06 . ↑ Sloane, N. J. A. (ed.). "Sequence A003617 (Smallest n-digit prime)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A068093 (Smallest n-digit triangular number)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A068092 (Index of smallest triangular number with n digits)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A002559 (Markoff (or Markov) numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A003261 (Woodall (or Riesel) numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A000011 (Number of n-bead necklaces (turning over is allowed) where complements are equivalent)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A000013 (Number of n-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A001678 (Number of series-reduced planted trees with n nodes)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A004148 (Generalized Catalan numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A001006 (Motzkin numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A004394 (Superabundant [ or super-abundant ] numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A000108 (Catalan numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A001190 (Wedderburn-Etherington numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A005165 (Alternating factorials)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A101292" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A000129 (Pell numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A002955 (Number of (unordered, unlabeled) rooted trimmed trees with n nodes)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A122400 (Number of square (0,1)-matrices without zero rows and with exactly n entries equal to 1)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A003226 (Automorphic numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A007629 (Repfigit (REPetitive FIbonacci-like diGIT) numbers (or Keith numbers))" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A001003 (Schroeder's second problem (generalized parentheses))" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A002201 (Superior highly composite numbers)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A000112 (Number of partially ordered sets ("posets") with n unlabeled elements)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. ↑ Sloane, N. J. A. (ed.). "Sequence A003618 (Largest n-digit prime)" . The On-Line Encyclopedia of Integer Sequences . OEIS Foundation. Hundred thousand Eddington number Skewes's number Graham's number Scientific notation Knuth's up-arrow notation Conway chained arrow notation Steinhaus–Moser notation Hyperoperation Tetration Ackermann function Grzegorczyk hierarchy Fast-growing hierarchy Slow-growing hierarchy Hardy hierarchy Veblen function Extended real number line Indefinite and fictitious numbers Largest known prime number List of numbers Long and short scales Orders of magnitude 300 318 341 353 360 365 384 400 420 495 496 500 501 511 512 561 600 610 613 616 666 700 720 777 786 800 836 840 888 1000 1001 1023 1024 1089 1105 1728 1729 1980 1987 8000 8128 8191 8192 9000 9801 9855 9999 10,000 12000 16,807 60,000 64,079 65,535 65,536 65,537 100,000 131,072 142,857 144,000 10,000,000 43,112,609 1,000,000,000 2,147,483,647 4,294,967,295 100,000,000,000 1,000,000,000,000 10,000,000,000,000 Articles with short description Short description matches Wikidata