12631946568 has 16 divisors (see below), whose sum is σ = 31579866480. Its totient is φ = 4210648848.

The previous prime is 12631946539. The next prime is 12631946609. The reversal of 12631946568 is 86564913621.

It is a self number, because there is not a number n which added to its sum of digits gives 12631946568.

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, 263165530 + ... + 263165577.

It is an arithmetic number, because the mean of its divisors is an integer number (1973741655).

Almost surely, 2^12631946568 is an apocalyptic number.

It is an amenable number.

12631946568 is an abundant number, since it is smaller than the sum of its proper divisors (18947919912).

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

12631946568 is a wasteful number, since it uses less digits than its factorization.

12631946568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526331116 (or 526331112 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The spelling of 12631946568 in words is "twelve billion, six hundred thirty-one million, nine hundred forty-six thousand, five hundred sixty-eight".