79759495769 has 2 divisors, whose sum is σ = 79759495770. Its totient is φ = 79759495768.

The previous prime is 79759495759. The next prime is 79759495817. The reversal of 79759495769 is 96759495797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47794704400 + 31964791369 = 218620^2 + 178787^2 .

It is a cyclic number.

It is not a de Polignac number, because 79759495769 - 2²⁰ = 79758447193 is a prime.

It is a super-2 number, since 2×79759495769² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79759495769.

It is not a weakly prime, because it can be changed into another prime (79759495759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39879747884 + 39879747885.

It is an arithmetic number, because the mean of its divisors is an integer number (39879747885).

Almost surely, 2^79759495769 is an apocalyptic number.

It is an amenable number.

79759495769 is a deficient number, since it is larger than the sum of its proper divisors (1).

79759495769 is an equidigital number, since it uses as much as digits as its factorization.

79759495769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1350253800, while the sum is 77.

The spelling of 79759495769 in words is "seventy-nine billion, seven hundred fifty-nine million, four hundred ninety-five thousand, seven hundred sixty-nine".