79901315917 has 8 divisors (see below), whose sum is σ = 80114961600. Its totient is φ = 79687829760.

The previous prime is 79901315909. The next prime is 79901315933. The reversal of 79901315917 is 71951310997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79901315917 - 2³ = 79901315909 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 (79901315317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999138 + ... + 1076140.

It is an arithmetic number, because the mean of its divisors is an integer number (10014370200).

Almost surely, 2^79901315917 is an apocalyptic number.

It is an amenable number.

79901315917 is a deficient number, since it is larger than the sum of its proper divisors (213645683).

79901315917 is a wasteful number, since it uses less digits than its factorization.

79901315917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79763.

The product of its (nonzero) digits is 535815, while the sum is 52.

The spelling of 79901315917 in words is "seventy-nine billion, nine hundred one million, three hundred fifteen thousand, nine hundred seventeen".