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13877638875012 = 22311215163295381
BaseRepresentation
bin1100100111110010001110…
…1111000100011110000100
31211010200121111212202200110
43021330203233010132010
53304332401023000022
645303144351313020
72631424554062613
oct311744357043604
954120544782613
1013877638875012
1144705233a0400
1216816b521b770
1379886a842703
1435d97770587a
15190ec8a0000c
hexc9f23bc4784

13877638875012 has 72 divisors (see below), whose sum is σ = 35828224390336. Its totient is φ = 4177495080000.

The previous prime is 13877638874971. The next prime is 13877638875059. The reversal of 13877638875012 is 21057883677831.

13877638875012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31428439 + ... + 31866942.

Almost surely, 213877638875012 is an apocalyptic number.

13877638875012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13877638875012 is an abundant number, since it is smaller than the sum of its proper divisors (21950585515324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13877638875012 is a wasteful number, since it uses less digits than its factorization.

13877638875012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63295561 (or 63295548 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 66.

The spelling of 13877638875012 in words is "thirteen trillion, eight hundred seventy-seven billion, six hundred thirty-eight million, eight hundred seventy-five thousand, twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 151 242 302 363 453 484 604 726 906 1452 1661 1812 3322 4983 6644 9966 18271 19932 36542 54813 73084 109626 219252 63295381 126590762 189886143 253181524 379772286 696249191 759544572 1392498382 2088747573 2784996764 4177495146 7658741101 8354990292 9557602531 15317482202 19115205062 22976223303 28672807593 30634964404 38230410124 45952446606 57345615186 91904893212 105133627841 114691230372 210267255682 315400883523 420534511364 630801767046 1156469906251 1261603534092 2312939812502 3469409718753 4625879625004 6938819437506 13877638875012