31368368844 has 18 divisors (see below), whose sum is σ = 79292265780. Its totient is φ = 10456122936.

The previous prime is 31368368833. The next prime is 31368368879. The reversal of 31368368844 is 44886386313.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 435671754 + ... + 435671825.

Almost surely, 2^31368368844 is an apocalyptic number.

It is an amenable number.

31368368844 is an abundant number, since it is smaller than the sum of its proper divisors (47923896936).

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

31368368844 is a wasteful number, since it uses less digits than its factorization.

31368368844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871343589 (or 871343584 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The spelling of 31368368844 in words is "thirty-one billion, three hundred sixty-eight million, three hundred sixty-eight thousand, eight hundred forty-four".