79365238097 has 4 divisors (see below), whose sum is σ = 80666307636. Its totient is φ = 78064168560.

The previous prime is 79365238087. The next prime is 79365238103. The reversal of 79365238097 is 79083256397.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24433128721 + 54932109376 = 156311^2 + 234376^2 .

It is a cyclic number.

It is not a de Polignac number, because 79365238097 - 2⁸ = 79365237841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79365238027) 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, 650534678 + ... + 650534799.

It is an arithmetic number, because the mean of its divisors is an integer number (20166576909).

Almost surely, 2^79365238097 is an apocalyptic number.

It is an amenable number.

79365238097 is a deficient number, since it is larger than the sum of its proper divisors (1301069539).

79365238097 is a wasteful number, since it uses less digits than its factorization.

79365238097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301069538.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The spelling of 79365238097 in words is "seventy-nine billion, three hundred sixty-five million, two hundred thirty-eight thousand, ninety-seven".