79442563916365 has 16 divisors (see below), whose sum is σ = 102664445788800. Its totient is φ = 58665158344512.

The previous prime is 79442563916321. The next prime is 79442563916449. The reversal of 79442563916365 is 56361936524497.

It is a cyclic number.

It is not a de Polignac number, because 79442563916365 - 2¹⁹ = 79442563392077 is a prime.

It is a super-2 number, since 2×79442563916365² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79442563916294 and 79442563916303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42714826 + ... + 44535844.

It is an arithmetic number, because the mean of its divisors is an integer number (6416527861800).

Almost surely, 2^{79442563916365} is an apocalyptic number.

It is an amenable number.

79442563916365 is a deficient number, since it is larger than the sum of its proper divisors (23221881872435).

79442563916365 is a wasteful number, since it uses less digits than its factorization.

79442563916365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492196.

The product of its digits is 881798400, while the sum is 70.

The spelling of 79442563916365 in words is "seventy-nine trillion, four hundred forty-two billion, five hundred sixty-three million, nine hundred sixteen thousand, three hundred sixty-five".