79560367421 has 24 divisors (see below), whose sum is σ = 89456508960. Its totient is φ = 70546464000.

The previous prime is 79560367321. The next prime is 79560367493. The reversal of 79560367421 is 12476306597.

It is not a de Polignac number, because 79560367421 - 2¹⁸ = 79560105277 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

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 79560367421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79560367321) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 953846 + ... + 1033896.

It is an arithmetic number, because the mean of its divisors is an integer number (3727354540).

Almost surely, 2^79560367421 is an apocalyptic number.

It is an amenable number.

79560367421 is a deficient number, since it is larger than the sum of its proper divisors (9896141539).

79560367421 is a wasteful number, since it uses less digits than its factorization.

79560367421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80285 (or 80268 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 79560367421 in words is "seventy-nine billion, five hundred sixty million, three hundred sixty-seven thousand, four hundred twenty-one".