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12873791476 = 22713293139341
BaseRepresentation
bin10111111110101011…
…00111011111110100
31020020012022100220201
423333111213133310
5202331142311401
65525242010244
7634011264520
oct137725473764
936205270821
1012873791476
115506a13097
1225b34a6984
1312a21b2bc0
148a1ab4d80
15505321b01
hex2ff5677f4

12873791476 has 96 divisors (see below), whose sum is σ = 29610362880. Its totient is φ = 4758566400.

The previous prime is 12873791473. The next prime is 12873791477. The reversal of 12873791476 is 67419737821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12873791473) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307566 + ... + 346906.

It is an arithmetic number, because the mean of its divisors is an integer number (308441280).

Almost surely, 212873791476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12873791476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14805181440).

12873791476 is an abundant number, since it is smaller than the sum of its proper divisors (16736571404).

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

12873791476 is a wasteful number, since it uses less digits than its factorization.

12873791476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39425 (or 39423 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 55.

The spelling of 12873791476 in words is "twelve billion, eight hundred seventy-three million, seven hundred ninety-one thousand, four hundred seventy-six".

Divisors: 1 2 4 7 13 14 26 28 29 31 52 58 62 91 116 124 182 203 217 364 377 403 406 434 754 806 812 868 899 1508 1612 1798 2639 2821 3596 5278 5642 6293 10556 11284 11687 12586 23374 25172 39341 46748 78682 81809 157364 163618 275387 327236 511433 550774 1022866 1101548 1140889 1219571 2045732 2281778 2439142 3580031 4563556 4878284 7160062 7986223 8536997 14320124 14831557 15854423 15972446 17073994 29663114 31708846 31944892 34147988 35367559 59326228 63417692 70735118 103820899 110980961 141470236 207641798 221961922 247572913 415283596 443923844 459778267 495145826 919556534 990291652 1839113068 3218447869 6436895738 12873791476