72642551762262 has 64 divisors (see below), whose sum is σ = 147403818455040. Its totient is φ = 23863757481984.

The previous prime is 72642551762197. The next prime is 72642551762279. The reversal of 72642551762262 is 26226715524627.

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 31 ways as a sum of consecutive naturals, for example, 126565438 + ... + 127138094.

It is an arithmetic number, because the mean of its divisors is an integer number (2303184663360).

Almost surely, 2^{72642551762262} is an apocalyptic number.

72642551762262 is an abundant number, since it is smaller than the sum of its proper divisors (74761266692778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72642551762262 is a wasteful number, since it uses less digits than its factorization.

72642551762262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573837.

The product of its digits is 33868800, while the sum is 57.

The spelling of 72642551762262 in words is "seventy-two trillion, six hundred forty-two billion, five hundred fifty-one million, seven hundred sixty-two thousand, two hundred sixty-two".