31907648084 has 12 divisors (see below), whose sum is σ = 60133644564. Its totient is φ = 14726606784.

The previous prime is 31907648057. The next prime is 31907648137. The reversal of 31907648084 is 48084670913.

It can be written as a sum of positive squares in 2 ways, for example, as 8431279684 + 23476368400 = 91822^2 + 153220^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 306804257 + ... + 306804360.

It is an arithmetic number, because the mean of its divisors is an integer number (5011137047).

Almost surely, 2^31907648084 is an apocalyptic number.

It is an amenable number.

31907648084 is a deficient number, since it is larger than the sum of its proper divisors (28225996480).

31907648084 is a wasteful number, since it uses less digits than its factorization.

31907648084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613608634 (or 613608632 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 31907648084 in words is "thirty-one billion, nine hundred seven million, six hundred forty-eight thousand, eighty-four".