99999999933 has 16 divisors (see below), whose sum is σ = 133474738176. Its totient is φ = 66596007600.

The previous prime is 99999999907. The next prime is 99999999943. The reversal of 99999999933 is 33999999999.

It is not a de Polignac number, because 99999999933 - 2²⁸ = 99731564477 is a prime.

It is a Curzon number.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 99999999933.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99999999943) 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 15 ways as a sum of consecutive naturals, for example, 17693158 + ... + 17698808.

It is an arithmetic number, because the mean of its divisors is an integer number (8342171136).

Almost surely, 2^99999999933 is an apocalyptic number.

It is an amenable number.

99999999933 is a deficient number, since it is larger than the sum of its proper divisors (33474738243).

99999999933 is a wasteful number, since it uses less digits than its factorization.

99999999933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10864.

The product of its digits is 3486784401, while the sum is 87.

The spelling of 99999999933 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-three".