79092721623 has 8 divisors (see below), whose sum is σ = 106103938048. Its totient is φ = 52404993144.

The previous prime is 79092721619. The next prime is 79092721639. The reversal of 79092721623 is 32612729097.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79092721623 - 2² = 79092721619 is a prime.

It is a super-2 number, since 2×79092721623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79092721613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80871415 + ... + 80872392.

It is an arithmetic number, because the mean of its divisors is an integer number (13262992256).

Almost surely, 2^79092721623 is an apocalyptic number.

79092721623 is a deficient number, since it is larger than the sum of its proper divisors (27011216425).

79092721623 is a wasteful number, since it uses less digits than its factorization.

79092721623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161743973.

The product of its (nonzero) digits is 571536, while the sum is 48.

The spelling of 79092721623 in words is "seventy-nine billion, ninety-two million, seven hundred twenty-one thousand, six hundred twenty-three".