31368432832 has 28 divisors (see below), whose sum is σ = 67905529416. Its totient is φ = 14258378240.

The previous prime is 31368432829. The next prime is 31368432839. The reversal of 31368432832 is 23823486313.

It is not an unprimeable number, because it can be changed into a prime (31368432839) 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, 22278013 + ... + 22279420.

Almost surely, 2^31368432832 is an apocalyptic number.

31368432832 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31368432832 is an abundant number, since it is smaller than the sum of its proper divisors (36537096584).

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

31368432832 is a wasteful number, since it uses less digits than its factorization.

31368432832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44557456 (or 44557446 counting only the distinct ones).

The product of its digits is 497664, while the sum is 43.

The spelling of 31368432832 in words is "thirty-one billion, three hundred sixty-eight million, four hundred thirty-two thousand, eight hundred thirty-two".