12499702056 has 32 divisors (see below), whose sum is σ = 34721395200. Its totient is φ = 4166567280.

The previous prime is 12499702031. The next prime is 12499702073. The reversal of 12499702056 is 65020799421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28934280 + ... + 28934711.

It is an arithmetic number, because the mean of its divisors is an integer number (1085043600).

Almost surely, 2^12499702056 is an apocalyptic number.

It is an amenable number.

12499702056 is an abundant number, since it is smaller than the sum of its proper divisors (22221693144).

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

12499702056 is a wasteful number, since it uses less digits than its factorization.

12499702056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57869006 (or 57868996 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 12499702056 in words is "twelve billion, four hundred ninety-nine million, seven hundred two thousand, fifty-six".