12656357084 has 48 divisors (see below), whose sum is σ = 25718622720. Its totient is φ = 5337351360.

The previous prime is 12656357053. The next prime is 12656357099. The reversal of 12656357084 is 48075365621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2002289 + ... + 2008599.

It is an arithmetic number, because the mean of its divisors is an integer number (535804640).

Almost surely, 2^12656357084 is an apocalyptic number.

12656357084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12656357084 is an abundant number, since it is smaller than the sum of its proper divisors (13062265636).

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

12656357084 is a wasteful number, since it uses less digits than its factorization.

12656357084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7458 (or 7456 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 12656357084 in words is "twelve billion, six hundred fifty-six million, three hundred fifty-seven thousand, eighty-four".