72064804658 has 96 divisors (see below), whose sum is σ = 141048606720. Its totient is φ = 27001576800.

The previous prime is 72064804639. The next prime is 72064804663. The reversal of 72064804658 is 85640846027.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8555573 + ... + 8563991.

It is an arithmetic number, because the mean of its divisors is an integer number (1469256320).

Almost surely, 2^72064804658 is an apocalyptic number.

72064804658 is a deficient number, since it is larger than the sum of its proper divisors (68983802062).

72064804658 is a wasteful number, since it uses less digits than its factorization.

72064804658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8644 (or 8633 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 72064804658 in words is "seventy-two billion, sixty-four million, eight hundred four thousand, six hundred fifty-eight".