99999999924 has 48 divisors (see below), whose sum is σ = 254825174016. Its totient is φ = 30269730400.

The previous prime is 99999999907. The next prime is 99999999943. The reversal of 99999999924 is 42999999999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295542 + ... + 536045.

It is an arithmetic number, because the mean of its divisors is an integer number (5308857792).

Almost surely, 2^99999999924 is an apocalyptic number.

It is an amenable number.

99999999924 is an abundant number, since it is smaller than the sum of its proper divisors (154825174092).

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

99999999924 is a wasteful number, since it uses less digits than its factorization.

99999999924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832516 (or 832514 counting only the distinct ones).

The product of its digits is 3099363912, while the sum is 87.

The spelling of 99999999924 in words is "ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred twenty-four".