79999011100 has 36 divisors (see below), whose sum is σ = 173716187008. Its totient is φ = 31977792000.

The previous prime is 79999011083. The next prime is 79999011109. The reversal of 79999011100 is 111099997.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79999011109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124821 + ... + 419020.

Almost surely, 2^79999011100 is an apocalyptic number.

It is an amenable number.

79999011100 is an abundant number, since it is smaller than the sum of its proper divisors (93717175908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79999011100 is a wasteful number, since it uses less digits than its factorization.

79999011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545326 (or 545319 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 46.

The spelling of 79999011100 in words is "seventy-nine billion, nine hundred ninety-nine million, eleven thousand, one hundred".