79195767645 has 16 divisors (see below), whose sum is σ = 127369778112. Its totient is φ = 42018892800.

The previous prime is 79195767619. The next prime is 79195767659. The reversal of 79195767645 is 54676759197.

It is not a de Polignac number, because 79195767645 - 2¹⁶ = 79195702109 is a prime.

It is a super-2 number, since 2×79195767645² (a number of 23 digits) contains 22 as substring.

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, 13675131 + ... + 13680920.

It is an arithmetic number, because the mean of its divisors is an integer number (7960611132).

Almost surely, 2^79195767645 is an apocalyptic number.

It is an amenable number.

79195767645 is a deficient number, since it is larger than the sum of its proper divisors (48174010467).

79195767645 is a wasteful number, since it uses less digits than its factorization.

79195767645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27356252.

The product of its digits is 100018800, while the sum is 66.

The spelling of 79195767645 in words is "seventy-nine billion, one hundred ninety-five million, seven hundred sixty-seven thousand, six hundred forty-five".