79067865005 has 4 divisors (see below), whose sum is σ = 94881438012. Its totient is φ = 63254292000.

The previous prime is 79067864999. The next prime is 79067865017. The reversal of 79067865005 is 50056876097.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60440255716 + 18627609289 = 245846^2 + 136483^2 .

It is not a de Polignac number, because 79067865005 - 2²⁴ = 79051087789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7906786496 + ... + 7906786505.

It is an arithmetic number, because the mean of its divisors is an integer number (23720359503).

Almost surely, 2^79067865005 is an apocalyptic number.

It is an amenable number.

79067865005 is a deficient number, since it is larger than the sum of its proper divisors (15813573007).

79067865005 is a wasteful number, since it uses less digits than its factorization.

79067865005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15813573006.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The spelling of 79067865005 in words is "seventy-nine billion, sixty-seven million, eight hundred sixty-five thousand, five".