631031516904 has 32 divisors (see below), whose sum is σ = 1628468432640. Its totient is φ = 203558553600.

The previous prime is 631031516879. The next prime is 631031516939. The reversal of 631031516904 is 409615130136.

631031516904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424079577 + ... + 424081064.

It is an arithmetic number, because the mean of its divisors is an integer number (50889638520).

Almost surely, 2^631031516904 is an apocalyptic number.

It is an amenable number.

631031516904 is an abundant number, since it is smaller than the sum of its proper divisors (997436915736).

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

631031516904 is a wasteful number, since it uses less digits than its factorization.

631031516904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848160681 (or 848160677 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The spelling of 631031516904 in words is "six hundred thirty-one billion, thirty-one million, five hundred sixteen thousand, nine hundred four".