13137861756 has 12 divisors (see below), whose sum is σ = 30655010792. Its totient is φ = 4379287248.

The previous prime is 13137861727. The next prime is 13137861769. The reversal of 13137861756 is 65716873131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547410895 + ... + 547410918.

Almost surely, 2^13137861756 is an apocalyptic number.

It is an amenable number.

13137861756 is an abundant number, since it is smaller than the sum of its proper divisors (17517149036).

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

13137861756 is a wasteful number, since it uses less digits than its factorization.

13137861756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094821820 (or 1094821818 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The spelling of 13137861756 in words is "thirteen billion, one hundred thirty-seven million, eight hundred sixty-one thousand, seven hundred fifty-six".