31368037864 has 16 divisors (see below), whose sum is σ = 58882148100. Its totient is φ = 15666131712.

The previous prime is 31368037837. The next prime is 31368037873. The reversal of 31368037864 is 46873086313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31332540100 + 35497764 = 177010^2 + 5958^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2228449 + ... + 2242480.

Almost surely, 2^31368037864 is an apocalyptic number.

It is an amenable number.

31368037864 is a deficient number, since it is larger than the sum of its proper divisors (27514110236).

31368037864 is a wasteful number, since it uses less digits than its factorization.

31368037864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471812 (or 4471808 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 31368037864 in words is "thirty-one billion, three hundred sixty-eight million, thirty-seven thousand, eight hundred sixty-four".