79845460579 has 4 divisors (see below), whose sum is σ = 79848361440. Its totient is φ = 79842559720.

The previous prime is 79845460567. The next prime is 79845460601. The reversal of 79845460579 is 97506454897.

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

It is a cyclic number.

It is not a de Polignac number, because 79845460579 - 2⁹ = 79845460067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79845460579.

It is not an unprimeable number, because it can be changed into a prime (79845460879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408744 + ... + 1464325.

It is an arithmetic number, because the mean of its divisors is an integer number (19962090360).

Almost surely, 2^79845460579 is an apocalyptic number.

79845460579 is a deficient number, since it is larger than the sum of its proper divisors (2900861).

79845460579 is a wasteful number, since it uses less digits than its factorization.

79845460579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900860.

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 79845460579 in words is "seventy-nine billion, eight hundred forty-five million, four hundred sixty thousand, five hundred seventy-nine".