79186421323 has 4 divisors (see below), whose sum is σ = 80002776280. Its totient is φ = 78370066368.

The previous prime is 79186421287. The next prime is 79186421341. The reversal of 79186421323 is 32312468197.

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 79186421323 - 2²⁹ = 78649550411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79186427323) 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, 408177333 + ... + 408177526.

It is an arithmetic number, because the mean of its divisors is an integer number (20000694070).

Almost surely, 2^79186421323 is an apocalyptic number.

79186421323 is a deficient number, since it is larger than the sum of its proper divisors (816354957).

79186421323 is an equidigital number, since it uses as much as digits as its factorization.

79186421323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816354956.

The product of its digits is 435456, while the sum is 46.

The spelling of 79186421323 in words is "seventy-nine billion, one hundred eighty-six million, four hundred twenty-one thousand, three hundred twenty-three".