12910873656 has 16 divisors (see below), whose sum is σ = 32277184200. Its totient is φ = 4303624544.

The previous prime is 12910873649. The next prime is 12910873681. The reversal of 12910873656 is 65637801921.

It is a super-2 number, since 2×12910873656² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268976511 + ... + 268976558.

Almost surely, 2^12910873656 is an apocalyptic number.

It is an amenable number.

12910873656 is an abundant number, since it is smaller than the sum of its proper divisors (19366310544).

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

12910873656 is a wasteful number, since it uses less digits than its factorization.

12910873656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537953078 (or 537953074 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 12910873656 in words is "twelve billion, nine hundred ten million, eight hundred seventy-three thousand, six hundred fifty-six".