722142928865 has 16 divisors (see below), whose sum is σ = 874569907200. Its totient is φ = 572382666432.

The previous prime is 722142928813. The next prime is 722142928867. The reversal of 722142928865 is 568829241227.

It is a cyclic number.

It is not a de Polignac number, because 722142928865 - 2²⁶ = 722075820001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722142928865.

It is not an unprimeable number, because it can be changed into a prime (722142928867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18335384 + ... + 18374726.

It is an arithmetic number, because the mean of its divisors is an integer number (54660619200).

Almost surely, 2^722142928865 is an apocalyptic number.

It is an amenable number.

722142928865 is a deficient number, since it is larger than the sum of its proper divisors (152426978335).

722142928865 is a wasteful number, since it uses less digits than its factorization.

722142928865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73136.

The product of its digits is 7741440, while the sum is 56.

The spelling of 722142928865 in words is "seven hundred twenty-two billion, one hundred forty-two million, nine hundred twenty-eight thousand, eight hundred sixty-five".