31148485688 has 64 divisors (see below), whose sum is σ = 62224588800. Its totient is φ = 14566970880.

The previous prime is 31148485679. The next prime is 31148485703. The reversal of 31148485688 is 88658484113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31430873 + ... + 31431863.

It is an arithmetic number, because the mean of its divisors is an integer number (972259200).

Almost surely, 2^31148485688 is an apocalyptic number.

It is an amenable number.

31148485688 is a deficient number, since it is larger than the sum of its proper divisors (31076103112).

31148485688 is a wasteful number, since it uses less digits than its factorization.

31148485688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220 (or 2216 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 56.

The spelling of 31148485688 in words is "thirty-one billion, one hundred forty-eight million, four hundred eighty-five thousand, six hundred eighty-eight".