79918574315 has 4 divisors (see below), whose sum is σ = 95902289184. Its totient is φ = 63934859448.

The previous prime is 79918574293. The next prime is 79918574339. The reversal of 79918574315 is 51347581997.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51347581997 = 188687 ⋅272131.

It is a cyclic number.

It is not a de Polignac number, because 79918574315 - 2¹² = 79918570219 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7991857427 + ... + 7991857436.

It is an arithmetic number, because the mean of its divisors is an integer number (23975572296).

Almost surely, 2^79918574315 is an apocalyptic number.

79918574315 is a deficient number, since it is larger than the sum of its proper divisors (15983714869).

79918574315 is a wasteful number, since it uses less digits than its factorization.

79918574315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15983714868.

The product of its digits is 9525600, while the sum is 59.

The spelling of 79918574315 in words is "seventy-nine billion, nine hundred eighteen million, five hundred seventy-four thousand, three hundred fifteen".