79218426585 has 16 divisors (see below), whose sum is σ = 127242677376. Its totient is φ = 42085429248.

The previous prime is 79218426523. The next prime is 79218426593. The reversal of 79218426585 is 58562481297.

It is not a de Polignac number, because 79218426585 - 2⁷ = 79218426457 is a prime.

It is a super-2 number, since 2×79218426585² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10270909 + ... + 10278618.

It is an arithmetic number, because the mean of its divisors is an integer number (7952667336).

Almost surely, 2^79218426585 is an apocalyptic number.

It is an amenable number.

79218426585 is a deficient number, since it is larger than the sum of its proper divisors (48024250791).

79218426585 is a wasteful number, since it uses less digits than its factorization.

79218426585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20549792.

The product of its digits is 9676800, while the sum is 57.

The spelling of 79218426585 in words is "seventy-nine billion, two hundred eighteen million, four hundred twenty-six thousand, five hundred eighty-five".