31516063922 has 54 divisors (see below), whose sum is σ = 55943675487. Its totient is φ = 13277162808.

The previous prime is 31516063889. The next prime is 31516064053. The reversal of 31516063922 is 22936061513.

It can be written as a sum of positive squares in only one way, i.e., 15758031961 + 15758031961 = 125531^2 + 125531^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=125531.

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 26 ways as a sum of consecutive naturals, for example, 138837173 + ... + 138837399.

Almost surely, 2^31516063922 is an apocalyptic number.

31516063922 is a deficient number, since it is larger than the sum of its proper divisors (24427611565).

31516063922 is an frugal number, since it uses more digits than its factorization.

31516063922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 31516063922 in words is "thirty-one billion, five hundred sixteen million, sixty-three thousand, nine hundred twenty-two".