631586975852364 has 72 divisors (see below), whose sum is σ = 1714313586751920. Its totient is φ = 180452781581184.

The previous prime is 631586975852341. The next prime is 631586975852389. The reversal of 631586975852364 is 463258579685136.

It is a self number, because there is not a number n which added to its sum of digits gives 631586975852364.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178522594 + ... + 182026070.

It is an arithmetic number, because the mean of its divisors is an integer number (23809910927110).

Almost surely, 2^{631586975852364} is an apocalyptic number.

It is an amenable number.

631586975852364 is an abundant number, since it is smaller than the sum of its proper divisors (1082726610899556).

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

631586975852364 is a wasteful number, since it uses less digits than its factorization.

631586975852364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810087 (or 3810078 counting only the distinct ones).

The product of its digits is 7838208000, while the sum is 78.

The spelling of 631586975852364 in words is "six hundred thirty-one trillion, five hundred eighty-six billion, nine hundred seventy-five million, eight hundred fifty-two thousand, three hundred sixty-four".