31612364860 has 48 divisors (see below), whose sum is σ = 66558240000. Its totient is φ = 12612188160.

The previous prime is 31612364803. The next prime is 31612364873. The reversal of 31612364860 is 6846321613.

It is a super-2 number, since 2×31612364860² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24754542 + ... + 24755818.

It is an arithmetic number, because the mean of its divisors is an integer number (1386630000).

Almost surely, 2^31612364860 is an apocalyptic number.

It is an amenable number.

31612364860 is an abundant number, since it is smaller than the sum of its proper divisors (34945875140).

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

31612364860 is a wasteful number, since it uses less digits than its factorization.

31612364860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526 (or 3524 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 31612364860 in words is "thirty-one billion, six hundred twelve million, three hundred sixty-four thousand, eight hundred sixty".