12556858518875 has 16 divisors (see below), whose sum is σ = 17095592109024. Its totient is φ = 9132260740000.

The previous prime is 12556858518871. The next prime is 12556858518877. The reversal of 12556858518875 is 57881585865521.

It is not a de Polignac number, because 12556858518875 - 2² = 12556858518871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12556858518871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4566128996 + ... + 4566131745.

It is an arithmetic number, because the mean of its divisors is an integer number (1068474506814).

Almost surely, 2^{12556858518875} is an apocalyptic number.

12556858518875 is a deficient number, since it is larger than the sum of its proper divisors (4538733590149).

12556858518875 is an equidigital number, since it uses as much as digits as its factorization.

12556858518875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9132260767 (or 9132260757 counting only the distinct ones).

The product of its digits is 1075200000, while the sum is 74.

The spelling of 12556858518875 in words is "twelve trillion, five hundred fifty-six billion, eight hundred fifty-eight million, five hundred eighteen thousand, eight hundred seventy-five".