79131341623 has 4 divisors (see below), whose sum is σ = 79605182160. Its totient is φ = 78657501088.

The previous prime is 79131341609. The next prime is 79131341629. The reversal of 79131341623 is 32614313197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32614313197 = 677 ⋅48174761.

It is a cyclic number.

It is not a de Polignac number, because 79131341623 - 2²⁵ = 79097787191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79131341629) 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 3 ways as a sum of consecutive naturals, for example, 236920018 + ... + 236920351.

It is an arithmetic number, because the mean of its divisors is an integer number (19901295540).

Almost surely, 2^79131341623 is an apocalyptic number.

79131341623 is a deficient number, since it is larger than the sum of its proper divisors (473840537).

79131341623 is a wasteful number, since it uses less digits than its factorization.

79131341623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473840536.

The product of its digits is 81648, while the sum is 40.

The spelling of 79131341623 in words is "seventy-nine billion, one hundred thirty-one million, three hundred forty-one thousand, six hundred twenty-three".