79975838901 has 128 divisors (see below), whose sum is σ = 140106792960. Its totient is φ = 39517632000.

The previous prime is 79975838881. The next prime is 79975838903. The reversal of 79975838901 is 10983857997.

It is not a de Polignac number, because 79975838901 - 2¹⁵ = 79975806133 is a prime.

It is a super-2 number, since 2×79975838901² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79975838903) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20765626 + ... + 20769476.

It is an arithmetic number, because the mean of its divisors is an integer number (1094584320).

Almost surely, 2^79975838901 is an apocalyptic number.

It is an amenable number.

79975838901 is a deficient number, since it is larger than the sum of its proper divisors (60130954059).

79975838901 is a wasteful number, since it uses less digits than its factorization.

79975838901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007.

The product of its (nonzero) digits is 34292160, while the sum is 66.

The spelling of 79975838901 in words is "seventy-nine billion, nine hundred seventy-five million, eight hundred thirty-eight thousand, nine hundred one".