631503792672 has 24 divisors (see below), whose sum is σ = 1657697456016. Its totient is φ = 210501264192.

The previous prime is 631503792641. The next prime is 631503792683. The reversal of 631503792672 is 276297305136.

It is a tau number, because it is divible by the number of its divisors (24).

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, 3289082158 + ... + 3289082349.

It is an arithmetic number, because the mean of its divisors is an integer number (69070727334).

Almost surely, 2^631503792672 is an apocalyptic number.

It is an amenable number.

631503792672 is an abundant number, since it is smaller than the sum of its proper divisors (1026193663344).

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

631503792672 is a wasteful number, since it uses less digits than its factorization.

631503792672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6578164520 (or 6578164512 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 51.

The spelling of 631503792672 in words is "six hundred thirty-one billion, five hundred three million, seven hundred ninety-two thousand, six hundred seventy-two".