79944444458 has 8 divisors (see below), whose sum is σ = 119922532128. Its totient is φ = 39970267084.

The previous prime is 79944444451. The next prime is 79944444533. The reversal of 79944444458 is 85444444997.

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

It is a super-2 number, since 2×79944444458² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79944444458.

It is not an unprimeable number, because it can be changed into a prime (79944444451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925916 + ... + 1008567.

It is an arithmetic number, because the mean of its divisors is an integer number (14990316516).

Almost surely, 2^79944444458 is an apocalyptic number.

79944444458 is a deficient number, since it is larger than the sum of its proper divisors (39978087670).

79944444458 is a wasteful number, since it uses less digits than its factorization.

79944444458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955148.

The product of its digits is 92897280, while the sum is 62.

The spelling of 79944444458 in words is "seventy-nine billion, nine hundred forty-four million, four hundred forty-four thousand, four hundred fifty-eight".