79365175397 has 4 divisors (see below), whose sum is σ = 79404919596. Its totient is φ = 79325431200.

The previous prime is 79365175333. The next prime is 79365175399. The reversal of 79365175397 is 79357156397.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79357156397 = 1511 ⋅52519627.

It can be written as a sum of positive squares in 2 ways, for example, as 38466584641 + 40898590756 = 196129^2 + 202234^2 .

It is a cyclic number.

It is not a de Polignac number, because 79365175397 - 2⁶ = 79365175333 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 (79365175399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19869104 + ... + 19873097.

It is an arithmetic number, because the mean of its divisors is an integer number (19851229899).

Almost surely, 2^79365175397 is an apocalyptic number.

It is an amenable number.

79365175397 is a deficient number, since it is larger than the sum of its proper divisors (39744199).

79365175397 is a wasteful number, since it uses less digits than its factorization.

79365175397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39744198.

The product of its digits is 37507050, while the sum is 62.

The spelling of 79365175397 in words is "seventy-nine billion, three hundred sixty-five million, one hundred seventy-five thousand, three hundred ninety-seven".