72700980602 has 4 divisors (see below), whose sum is σ = 109051470906. Its totient is φ = 36350490300.

The previous prime is 72700980559. The next prime is 72700980659. The reversal of 72700980602 is 20608900727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54349130641 + 18351849961 = 233129^2 + 135469^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72700980602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18175245149 + ... + 18175245152.

Almost surely, 2^72700980602 is an apocalyptic number.

72700980602 is a deficient number, since it is larger than the sum of its proper divisors (36350490304).

72700980602 is a wasteful number, since it uses less digits than its factorization.

72700980602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36350490303.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 72700980602 in words is "seventy-two billion, seven hundred million, nine hundred eighty thousand, six hundred two".