72768193385 has 32 divisors (see below), whose sum is σ = 98253630720. Its totient is φ = 51466060800.

The previous prime is 72768193349. The next prime is 72768193411. The reversal of 72768193385 is 58339186727.

It is a happy number.

It is not a de Polignac number, because 72768193385 - 2²⁰ = 72767144809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316556 + ... + 495725.

It is an arithmetic number, because the mean of its divisors is an integer number (3070425960).

Almost surely, 2^72768193385 is an apocalyptic number.

It is an amenable number.

72768193385 is a deficient number, since it is larger than the sum of its proper divisors (25485437335).

72768193385 is a wasteful number, since it uses less digits than its factorization.

72768193385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812369.

The product of its digits is 15240960, while the sum is 59.

The spelling of 72768193385 in words is "seventy-two billion, seven hundred sixty-eight million, one hundred ninety-three thousand, three hundred eighty-five".