31730317442886 has 16 divisors (see below), whose sum is σ = 63630770640624. Its totient is φ = 10548416521824.

The previous prime is 31730317442851. The next prime is 31730317442897. The reversal of 31730317442886 is 68824471303713.

It is a congruent number.

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, 7088987361 + ... + 7088991836.

It is an arithmetic number, because the mean of its divisors is an integer number (3976923165039).

Almost surely, 2^{31730317442886} is an apocalyptic number.

31730317442886 is an abundant number, since it is smaller than the sum of its proper divisors (31900453197738).

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

31730317442886 is a wasteful number, since it uses less digits than its factorization.

31730317442886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14177979575.

The product of its (nonzero) digits is 16257024, while the sum is 57.

The spelling of 31730317442886 in words is "thirty-one trillion, seven hundred thirty billion, three hundred seventeen million, four hundred forty-two thousand, eight hundred eighty-six".