12908811402864 has 160 divisors (see below), whose sum is σ = 40981774290240. Its totient is φ = 3864592124928.

The previous prime is 12908811402857. The next prime is 12908811402913. The reversal of 12908811402864 is 46820411880921.

12908811402864 is a `hidden beast` number, since 1 + 2 + 90 + 88 + 11 + 402 + 8 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 12908811402864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30854067 + ... + 31269650.

It is an arithmetic number, because the mean of its divisors is an integer number (256136089314).

Almost surely, 2^{12908811402864} is an apocalyptic number.

It is an amenable number.

12908811402864 is an abundant number, since it is smaller than the sum of its proper divisors (28072962887376).

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

12908811402864 is a wasteful number, since it uses less digits than its factorization.

12908811402864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62123784 (or 62123772 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 12908811402864 in words is "twelve trillion, nine hundred eight billion, eight hundred eleven million, four hundred two thousand, eight hundred sixty-four".