79586616321 has 27 divisors (see below), whose sum is σ = 115717689633. Its totient is φ = 52709619240.

The previous prime is 79586616289. The next prime is 79586616323. The reversal of 79586616321 is 12361668597.

The square root of 79586616321 is 282111.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 79586616321 - 2⁵ = 79586616289 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (79586616323) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 229356070 + ... + 229356416.

Almost surely, 2^79586616321 is an apocalyptic number.

79586616321 is the 282111-st square number.

79586616321 is the 141056-th centered octagonal number.

It is an amenable number.

79586616321 is a deficient number, since it is larger than the sum of its proper divisors (36131073312).

79586616321 is an frugal number, since it uses more digits than its factorization.

79586616321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 621 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 79586616321 in words is "seventy-nine billion, five hundred eighty-six million, six hundred sixteen thousand, three hundred twenty-one".