31431704444 has 18 divisors (see below), whose sum is σ = 63985970160. Its totient is φ = 13470730392.

The previous prime is 31431704441. The next prime is 31431704497. The reversal of 31431704444 is 44440713413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431704441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80182724 + ... + 80183115.

It is an arithmetic number, because the mean of its divisors is an integer number (3554776120).

Almost surely, 2^31431704444 is an apocalyptic number.

It is an amenable number.

31431704444 is an abundant number, since it is smaller than the sum of its proper divisors (32554265716).

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

31431704444 is a wasteful number, since it uses less digits than its factorization.

31431704444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160365857 (or 160365848 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 31431704444 in words is "thirty-one billion, four hundred thirty-one million, seven hundred four thousand, four hundred forty-four".