31117883460 has 96 divisors (see below), whose sum is σ = 92746684800. Its totient is φ = 7773004800.

The previous prime is 31117883443. The next prime is 31117883473. The reversal of 31117883460 is 6438871113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51891 + ... + 254810.

It is an arithmetic number, because the mean of its divisors is an integer number (966111300).

Almost surely, 2^31117883460 is an apocalyptic number.

31117883460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31117883460 is an abundant number, since it is smaller than the sum of its proper divisors (61628801340).

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

31117883460 is a wasteful number, since it uses less digits than its factorization.

31117883460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306821 (or 306819 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 31117883460 in words is "thirty-one billion, one hundred seventeen million, eight hundred eighty-three thousand, four hundred sixty".