31630113792 has 110 divisors (see below), whose sum is σ = 94453951328. Its totient is φ = 10543343616.

The previous prime is 31630113761. The next prime is 31630113811. The reversal of 31630113792 is 29731103613.

31630113792 is a `hidden beast` number, since 3 + 1 + 630 + 1 + 13 + 7 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 107728 + ... + 273615.

Almost surely, 2^31630113792 is an apocalyptic number.

31630113792 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31630113792 is an abundant number, since it is smaller than the sum of its proper divisors (62823837536).

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

31630113792 is an equidigital number, since it uses as much as digits as its factorization.

31630113792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381375 (or 381348 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The spelling of 31630113792 in words is "thirty-one billion, six hundred thirty million, one hundred thirteen thousand, seven hundred ninety-two".