12556858518876 has 48 divisors (see below), whose sum is σ = 33516516096000. Its totient is φ = 3584292429120.

The previous prime is 12556858518871. The next prime is 12556858518877. The reversal of 12556858518876 is 67881585865521.

It is a junction number, because it is equal to n+sod(n) for n = 12556858518798 and 12556858518807.

It is a congruent number.

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, 70356876 + ... + 70535123.

It is an arithmetic number, because the mean of its divisors is an integer number (698260752000).

Almost surely, 2^{12556858518876} is an apocalyptic number.

It is an amenable number.

12556858518876 is an abundant number, since it is smaller than the sum of its proper divisors (20959657577124).

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

12556858518876 is a wasteful number, since it uses less digits than its factorization.

12556858518876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140893074 (or 140893072 counting only the distinct ones).

The product of its digits is 1290240000, while the sum is 75.

The spelling of 12556858518876 in words is "twelve trillion, five hundred fifty-six billion, eight hundred fifty-eight million, five hundred eighteen thousand, eight hundred seventy-six".