79159791963 has 16 divisors (see below), whose sum is σ = 120638567936. Its totient is φ = 45228870720.

The previous prime is 79159791961. The next prime is 79159791989. The reversal of 79159791963 is 36919795197.

It is not a de Polignac number, because 79159791963 - 2¹ = 79159791961 is a prime.

It is the 281354-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79159791894 and 79159791903.

It is not an unprimeable number, because it can be changed into a prime (79159791961) by changing a digit.

It is a nontrivial repunit in base 281353.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33343 + ... + 399288.

It is an arithmetic number, because the mean of its divisors is an integer number (7539910496).

Almost surely, 2^79159791963 is an apocalyptic number.

79159791963 is a deficient number, since it is larger than the sum of its proper divisors (41478775973).

79159791963 is a wasteful number, since it uses less digits than its factorization.

79159791963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441354.

The product of its digits is 28934010, while the sum is 66.

The spelling of 79159791963 in words is "seventy-nine billion, one hundred fifty-nine million, seven hundred ninety-one thousand, nine hundred sixty-three".