79944793911 has 8 divisors (see below), whose sum is σ = 118436731760. Its totient is φ = 53296529256.

The previous prime is 79944793891. The next prime is 79944793921. The reversal of 79944793911 is 11939744997.

79944793911 is a `hidden beast` number, since 7 + 99 + 447 + 93 + 9 + 11 = 666.

It is not a de Polignac number, because 79944793911 - 2⁹ = 79944793399 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 (79944793921) 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, 1480459120 + ... + 1480459173.

It is an arithmetic number, because the mean of its divisors is an integer number (14804591470).

Almost surely, 2^79944793911 is an apocalyptic number.

79944793911 is a deficient number, since it is larger than the sum of its proper divisors (38491937849).

79944793911 is a wasteful number, since it uses less digits than its factorization.

79944793911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960918302 (or 2960918296 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The spelling of 79944793911 in words is "seventy-nine billion, nine hundred forty-four million, seven hundred ninety-three thousand, nine hundred eleven".