79699608771 has 16 divisors (see below), whose sum is σ = 107858626560. Its totient is φ = 52338162240.

The previous prime is 79699608767. The next prime is 79699608773. The reversal of 79699608771 is 17780699697.

It is not a de Polignac number, because 79699608771 - 2² = 79699608767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79699608696 and 79699608705.

It is not an unprimeable number, because it can be changed into a prime (79699608773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74766 + ... + 406188.

It is an arithmetic number, because the mean of its divisors is an integer number (6741164160).

Almost surely, 2^79699608771 is an apocalyptic number.

79699608771 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79699608771 is a deficient number, since it is larger than the sum of its proper divisors (28159017789).

79699608771 is a wasteful number, since it uses less digits than its factorization.

79699608771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332626.

The product of its (nonzero) digits is 72013536, while the sum is 69.

The spelling of 79699608771 in words is "seventy-nine billion, six hundred ninety-nine million, six hundred eight thousand, seven hundred seventy-one".