79655788799 has 4 divisors (see below), whose sum is σ = 81350592864. Its totient is φ = 77960984736.

The previous prime is 79655788781. The next prime is 79655788871. The reversal of 79655788799 is 99788755697.

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

It is a cyclic number.

It is not a de Polignac number, because 79655788799 - 2¹⁶ = 79655723263 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 (79655728799) 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, 847401962 + ... + 847402055.

It is an arithmetic number, because the mean of its divisors is an integer number (20337648216).

Almost surely, 2^79655788799 is an apocalyptic number.

79655788799 is a deficient number, since it is larger than the sum of its proper divisors (1694804065).

79655788799 is a wasteful number, since it uses less digits than its factorization.

79655788799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694804064.

The product of its digits is 2400451200, while the sum is 80.

The spelling of 79655788799 in words is "seventy-nine billion, six hundred fifty-five million, seven hundred eighty-eight thousand, seven hundred ninety-nine".