31630243308892 has 12 divisors (see below), whose sum is σ = 56397320617176. Its totient is φ = 15516723132560.

The previous prime is 31630243308847. The next prime is 31630243308899. The reversal of 31630243308892 is 29880334203613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31630243308899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74599630234 + ... + 74599630657.

It is an arithmetic number, because the mean of its divisors is an integer number (4699776718098).

Almost surely, 2^{31630243308892} is an apocalyptic number.

It is an amenable number.

31630243308892 is a deficient number, since it is larger than the sum of its proper divisors (24767077308284).

31630243308892 is a wasteful number, since it uses less digits than its factorization.

31630243308892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149199260948 (or 149199260946 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 52.

The spelling of 31630243308892 in words is "thirty-one trillion, six hundred thirty billion, two hundred forty-three million, three hundred eight thousand, eight hundred ninety-two".