72232713313 has 4 divisors (see below), whose sum is σ = 72238178500. Its totient is φ = 72227248128.

The previous prime is 72232713271. The next prime is 72232713323. The reversal of 72232713313 is 31331723227.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8105761024 + 64126952289 = 90032^2 + 253233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72232713313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72232713323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2712720 + ... + 2739217.

It is an arithmetic number, because the mean of its divisors is an integer number (18059544625).

Almost surely, 2^72232713313 is an apocalyptic number.

It is an amenable number.

72232713313 is a deficient number, since it is larger than the sum of its proper divisors (5465187).

72232713313 is a wasteful number, since it uses less digits than its factorization.

72232713313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465186.

The product of its digits is 31752, while the sum is 34.

The spelling of 72232713313 in words is "seventy-two billion, two hundred thirty-two million, seven hundred thirteen thousand, three hundred thirteen".