79022887491 has 32 divisors (see below), whose sum is σ = 110372585472. Its totient is φ = 50195747360.

The previous prime is 79022887483. The next prime is 79022887579. The reversal of 79022887491 is 19478822097.

It is a cyclic number.

It is not a de Polignac number, because 79022887491 - 2³ = 79022887483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79022887451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29147626 + ... + 29150336.

It is an arithmetic number, because the mean of its divisors is an integer number (3449143296).

Almost surely, 2^79022887491 is an apocalyptic number.

79022887491 is a deficient number, since it is larger than the sum of its proper divisors (31349697981).

79022887491 is a wasteful number, since it uses less digits than its factorization.

79022887491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 79022887491 in words is "seventy-nine billion, twenty-two million, eight hundred eighty-seven thousand, four hundred ninety-one".