79796635431 has 4 divisors (see below), whose sum is σ = 106395513912. Its totient is φ = 53197756952.

The previous prime is 79796635421. The next prime is 79796635433. The reversal of 79796635431 is 13453669797.

It is a happy number.

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 79796635431 - 2¹¹ = 79796633383 is a prime.

It is a super-2 number, since 2×79796635431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79796635433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13299439236 + ... + 13299439241.

It is an arithmetic number, because the mean of its divisors is an integer number (26598878478).

Almost surely, 2^79796635431 is an apocalyptic number.

79796635431 is a deficient number, since it is larger than the sum of its proper divisors (26598878481).

79796635431 is a wasteful number, since it uses less digits than its factorization.

79796635431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26598878480.

The product of its digits is 25719120, while the sum is 60.

The spelling of 79796635431 in words is "seventy-nine billion, seven hundred ninety-six million, six hundred thirty-five thousand, four hundred thirty-one".