31354838709680 has 40 divisors (see below), whose sum is σ = 77188235297472. Its totient is φ = 11804174572544.

The previous prime is 31354838709647. The next prime is 31354838709737. The reversal of 31354838709680 is 8690783845313.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11527512872 + ... + 11527515591.

Almost surely, 2^{31354838709680} is an apocalyptic number.

It is an amenable number.

31354838709680 is an abundant number, since it is smaller than the sum of its proper divisors (45833396587792).

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

31354838709680 is a wasteful number, since it uses less digits than its factorization.

31354838709680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23055028493 (or 23055028487 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 31354838709680 in words is "thirty-one trillion, three hundred fifty-four billion, eight hundred thirty-eight million, seven hundred nine thousand, six hundred eighty".