31768930819780 has 96 divisors (see below), whose sum is σ = 83246562604800. Its totient is φ = 9893703751680.

The previous prime is 31768930819711. The next prime is 31768930819793. The reversal of 31768930819780 is 8791803986713.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6808705 + ... + 10483144.

It is an arithmetic number, because the mean of its divisors is an integer number (867151693800).

Almost surely, 2^{31768930819780} is an apocalyptic number.

It is an amenable number.

31768930819780 is an abundant number, since it is smaller than the sum of its proper divisors (51477631785020).

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

31768930819780 is a wasteful number, since it uses less digits than its factorization.

31768930819780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17293069 (or 17293067 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 70.

The spelling of 31768930819780 in words is "thirty-one trillion, seven hundred sixty-eight billion, nine hundred thirty million, eight hundred nineteen thousand, seven hundred eighty".