31408364944 has 30 divisors (see below), whose sum is σ = 66888789590. Its totient is φ = 14276528640.

The previous prime is 31408364917. The next prime is 31408365041. The reversal of 31408364944 is 44946380413.

It can be written as a sum of positive squares in only one way, i.e., 23351507344 + 8056857600 = 152812^2 + 89760^2 .

It is a super-3 number, since 3×31408364944³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31408364894 and 31408364903.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8109729 + ... + 8113600.

Almost surely, 2^31408364944 is an apocalyptic number.

It is an amenable number.

31408364944 is an abundant number, since it is smaller than the sum of its proper divisors (35480424646).

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

31408364944 is a wasteful number, since it uses less digits than its factorization.

31408364944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16223359 (or 16223342 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 31408364944 in words is "thirty-one billion, four hundred eight million, three hundred sixty-four thousand, nine hundred forty-four".