72907068806 has 48 divisors (see below), whose sum is σ = 129525350400. Its totient is φ = 30509912160.

The previous prime is 72907068797. The next prime is 72907068821. The reversal of 72907068806 is 60886070927.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1398395 + ... + 1449593.

It is an arithmetic number, because the mean of its divisors is an integer number (2698444800).

Almost surely, 2^72907068806 is an apocalyptic number.

72907068806 is a deficient number, since it is larger than the sum of its proper divisors (56618281594).

72907068806 is a wasteful number, since it uses less digits than its factorization.

72907068806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51621 (or 51608 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 72907068806 in words is "seventy-two billion, nine hundred seven million, sixty-eight thousand, eight hundred six".