72799476539 has 2 divisors, whose sum is σ = 72799476540. Its totient is φ = 72799476538.

The previous prime is 72799476509. The next prime is 72799476553. The reversal of 72799476539 is 93567499727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72799476539 - 2¹² = 72799472443 is a prime.

It is a super-2 number, since 2×72799476539² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (72799476509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36399738269 + 36399738270.

It is an arithmetic number, because the mean of its divisors is an integer number (36399738270).

Almost surely, 2^72799476539 is an apocalyptic number.

72799476539 is a deficient number, since it is larger than the sum of its proper divisors (1).

72799476539 is an equidigital number, since it uses as much as digits as its factorization.

72799476539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180033840, while the sum is 68.

The spelling of 72799476539 in words is "seventy-two billion, seven hundred ninety-nine million, four hundred seventy-six thousand, five hundred thirty-nine".