79669261873 has 16 divisors (see below), whose sum is σ = 88894889856. Its totient is φ = 71012550400.

The previous prime is 79669261843. The next prime is 79669261877. The reversal of 79669261873 is 37816296697.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 79669261873 - 2¹³ = 79669253681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79669261877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969211 + ... + 1048192.

It is an arithmetic number, because the mean of its divisors is an integer number (5555930616).

Almost surely, 2^79669261873 is an apocalyptic number.

It is an amenable number.

79669261873 is a deficient number, since it is larger than the sum of its proper divisors (9225627983).

79669261873 is a wasteful number, since it uses less digits than its factorization.

79669261873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017544.

The product of its digits is 41150592, while the sum is 64.

The spelling of 79669261873 in words is "seventy-nine billion, six hundred sixty-nine million, two hundred sixty-one thousand, eight hundred seventy-three".