79317766771397 has 32 divisors (see below), whose sum is σ = 102085822046208. Its totient is φ = 59808705480000.

The previous prime is 79317766771343. The next prime is 79317766771403.

79317766771397 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 79317766771397 - 2²⁰ = 79317765722821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79317766771337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38968322 + ... + 40953212.

It is an arithmetic number, because the mean of its divisors is an integer number (3190181938944).

Almost surely, 2^{79317766771397} is an apocalyptic number.

79317766771397 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

79317766771397 is a deficient number, since it is larger than the sum of its proper divisors (22768055274811).

79317766771397 is a wasteful number, since it uses less digits than its factorization.

79317766771397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2001681.

The product of its digits is 3087580356, while the sum is 80.

The spelling of 79317766771397 in words is "seventy-nine trillion, three hundred seventeen billion, seven hundred sixty-six million, seven hundred seventy-one thousand, three hundred ninety-seven".