631312506876 has 12 divisors (see below), whose sum is σ = 1473062516072. Its totient is φ = 210437502288.

The previous prime is 631312506863. The next prime is 631312506961. The reversal of 631312506876 is 678605213136.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 26304687775 + ... + 26304687798.

Almost surely, 2^631312506876 is an apocalyptic number.

It is an amenable number.

631312506876 is an abundant number, since it is smaller than the sum of its proper divisors (841750009196).

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

631312506876 is a wasteful number, since it uses less digits than its factorization.

631312506876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52609375580 (or 52609375578 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 631312506876 in words is "six hundred thirty-one billion, three hundred twelve million, five hundred six thousand, eight hundred seventy-six".