79836679778983 has 8 divisors (see below), whose sum is σ = 79848199770768. Its totient is φ = 79825160561664.

The previous prime is 79836679778981. The next prime is 79836679779001. The reversal of 79836679778983 is 38987797663897.

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

It is a cyclic number.

It is not a de Polignac number, because 79836679778983 - 2¹ = 79836679778981 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 (79836679778981) 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, 224425191 + ... + 224780647.

It is an arithmetic number, because the mean of its divisors is an integer number (9981024971346).

Almost surely, 2^{79836679778983} is an apocalyptic number.

79836679778983 is a deficient number, since it is larger than the sum of its proper divisors (11519991785).

79836679778983 is a wasteful number, since it uses less digits than its factorization.

79836679778983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387233.

The product of its digits is 290358577152, while the sum is 97.

The spelling of 79836679778983 in words is "seventy-nine trillion, eight hundred thirty-six billion, six hundred seventy-nine million, seven hundred seventy-eight thousand, nine hundred eighty-three".