79442944455 has 16 divisors (see below), whose sum is σ = 145267098624. Its totient is φ = 36316774560.

The previous prime is 79442944429. The next prime is 79442944517. The reversal of 79442944455 is 55444924497.

It is not a de Polignac number, because 79442944455 - 2⁸ = 79442944199 is a prime.

It is a super-2 number, since 2×79442944455² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79442944395 and 79442944404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378299631 + ... + 378299840.

It is an arithmetic number, because the mean of its divisors is an integer number (9079193664).

Almost surely, 2^79442944455 is an apocalyptic number.

79442944455 is a deficient number, since it is larger than the sum of its proper divisors (65824154169).

79442944455 is a wasteful number, since it uses less digits than its factorization.

79442944455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756599486.

The product of its digits is 29030400, while the sum is 57.

The spelling of 79442944455 in words is "seventy-nine billion, four hundred forty-two million, nine hundred forty-four thousand, four hundred fifty-five".