79444374499 has 16 divisors (see below), whose sum is σ = 92922945280. Its totient is φ = 66498757920.

The previous prime is 79444374487. The next prime is 79444374523. The reversal of 79444374499 is 99447344497.

It is not a de Polignac number, because 79444374499 - 2¹⁷ = 79444243427 is a prime.

It is a super-2 number, since 2×79444374499² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79444374499.

It is not an unprimeable number, because it can be changed into a prime (79444374299) 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, 1744084 + ... + 1789054.

It is an arithmetic number, because the mean of its divisors is an integer number (5807684080).

Almost surely, 2^79444374499 is an apocalyptic number.

79444374499 is a deficient number, since it is larger than the sum of its proper divisors (13478570781).

79444374499 is a wasteful number, since it uses less digits than its factorization.

79444374499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50890.

The product of its digits is 109734912, while the sum is 64.

The spelling of 79444374499 in words is "seventy-nine billion, four hundred forty-four million, three hundred seventy-four thousand, four hundred ninety-nine".