31680735576 has 48 divisors (see below), whose sum is σ = 92132754840. Its totient is φ = 9051638400.

The previous prime is 31680735563. The next prime is 31680735661. The reversal of 31680735576 is 67553708613.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13468525 + ... + 13470876.

Almost surely, 2^31680735576 is an apocalyptic number.

It is an amenable number.

31680735576 is an abundant number, since it is smaller than the sum of its proper divisors (60452019264).

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

31680735576 is a wasteful number, since it uses less digits than its factorization.

31680735576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26939424 (or 26939413 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 31680735576 in words is "thirty-one billion, six hundred eighty million, seven hundred thirty-five thousand, five hundred seventy-six".