79343631791 has 4 divisors (see below), whose sum is σ = 79638589800. Its totient is φ = 79048673784.

The previous prime is 79343631767. The next prime is 79343631817. The reversal of 79343631791 is 19713634397.

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 79343631791 - 2⁶ = 79343631727 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 (79343634791) 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, 147478601 + ... + 147479138.

It is an arithmetic number, because the mean of its divisors is an integer number (19909647450).

Almost surely, 2^79343631791 is an apocalyptic number.

79343631791 is a deficient number, since it is larger than the sum of its proper divisors (294958009).

79343631791 is a wasteful number, since it uses less digits than its factorization.

79343631791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294958008.

The product of its digits is 2571912, while the sum is 53.

The spelling of 79343631791 in words is "seventy-nine billion, three hundred forty-three million, six hundred thirty-one thousand, seven hundred ninety-one".