631930978969824 has 96 divisors (see below), whose sum is σ = 1713875575636224. Its totient is φ = 203747445780480.

The previous prime is 631930978969783. The next prime is 631930978969907. The reversal of 631930978969824 is 428969879039136.

It is a tau number, because it is divible by the number of its divisors (96).

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, 742701297 + ... + 743551664.

It is an arithmetic number, because the mean of its divisors is an integer number (17852870579544).

Almost surely, 2^{631930978969824} is an apocalyptic number.

It is an amenable number.

631930978969824 is an abundant number, since it is smaller than the sum of its proper divisors (1081944596666400).

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

631930978969824 is a wasteful number, since it uses less digits than its factorization.

631930978969824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486253120 (or 1486253112 counting only the distinct ones).

The product of its (nonzero) digits is 7618738176, while the sum is 84.

The spelling of 631930978969824 in words is "six hundred thirty-one trillion, nine hundred thirty billion, nine hundred seventy-eight million, nine hundred sixty-nine thousand, eight hundred twenty-four".