99845831079 has 24 divisors (see below), whose sum is σ = 151827686400. Its totient is φ = 63054164880.

The previous prime is 99845831051. The next prime is 99845831087. The reversal of 99845831079 is 97013854899.

It is not a de Polignac number, because 99845831079 - 2¹³ = 99845822887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99845831089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2134714 + ... + 2180984.

It is an arithmetic number, because the mean of its divisors is an integer number (6326153600).

Almost surely, 2^99845831079 is an apocalyptic number.

99845831079 is a deficient number, since it is larger than the sum of its proper divisors (51981855321).

99845831079 is a wasteful number, since it uses less digits than its factorization.

99845831079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58915 (or 58912 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 99845831079 in words is "ninety-nine billion, eight hundred forty-five million, eight hundred thirty-one thousand, seventy-nine".