72706111696 has 20 divisors (see below), whose sum is σ = 140874439684. Its totient is φ = 36351417600.

The previous prime is 72706111679. The next prime is 72706111711. The reversal of 72706111696 is 69611160727.

It can be written as a sum of positive squares in 2 ways, for example, as 21539671696 + 51166440000 = 146764^2 + 226200^2 .

It is a congruent number.

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, 315406 + ... + 494866.

Almost surely, 2^72706111696 is an apocalyptic number.

It is an amenable number.

72706111696 is a deficient number, since it is larger than the sum of its proper divisors (68168327988).

72706111696 is a wasteful number, since it uses less digits than its factorization.

72706111696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204790 (or 204784 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 72706111696 in words is "seventy-two billion, seven hundred six million, one hundred eleven thousand, six hundred ninety-six".