80791460591 has 4 divisors (see below), whose sum is σ = 81427613952. Its totient is φ = 80155307232.

The previous prime is 80791460549. The next prime is 80791460621. The reversal of 80791460591 is 19506419708.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80791460591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80791460521) 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, 318076490 + ... + 318076743.

It is an arithmetic number, because the mean of its divisors is an integer number (20356903488).

Almost surely, 2^80791460591 is an apocalyptic number.

80791460591 is a deficient number, since it is larger than the sum of its proper divisors (636153361).

80791460591 is a wasteful number, since it uses less digits than its factorization.

80791460591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636153360.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 80791460591 in words is "eighty billion, seven hundred ninety-one million, four hundred sixty thousand, five hundred ninety-one".