79105163440431 has 4 divisors (see below), whose sum is σ = 105473551253912. Its totient is φ = 52736775626952.

The previous prime is 79105163440427. The next prime is 79105163440447. The reversal of 79105163440431 is 13404436150197.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 79105163440431 - 2² = 79105163440427 is a prime.

It is a super-2 number, since 2×79105163440431² (a number of 29 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 (79105163440631) 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, 13184193906736 + ... + 13184193906741.

It is an arithmetic number, because the mean of its divisors is an integer number (26368387813478).

Almost surely, 2^{79105163440431} is an apocalyptic number.

79105163440431 is a deficient number, since it is larger than the sum of its proper divisors (26368387813481).

79105163440431 is a wasteful number, since it uses less digits than its factorization.

79105163440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26368387813480.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 79105163440431 in words is "seventy-nine trillion, one hundred five billion, one hundred sixty-three million, four hundred forty thousand, four hundred thirty-one".