631313194432 has 14 divisors (see below), whose sum is σ = 1252762120328. Its totient is φ = 315656597184.

The previous prime is 631313194429. The next prime is 631313194451. The reversal of 631313194432 is 234491313136.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4932134268 + ... + 4932134395.

Almost surely, 2^631313194432 is an apocalyptic number.

It is an amenable number.

631313194432 is a deficient number, since it is larger than the sum of its proper divisors (621448925896).

631313194432 is an equidigital number, since it uses as much as digits as its factorization.

631313194432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9864268675 (or 9864268665 counting only the distinct ones).

The product of its digits is 139968, while the sum is 40.

The spelling of 631313194432 in words is "six hundred thirty-one billion, three hundred thirteen million, one hundred ninety-four thousand, four hundred thirty-two".