99799998424 has 64 divisors (see below), whose sum is σ = 232875360000. Its totient is φ = 39123036288.

The previous prime is 99799998413. The next prime is 99799998437. The reversal of 99799998424 is 42489999799.

It is a happy number.

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, 1586334 + ... + 1648045.

It is an arithmetic number, because the mean of its divisors is an integer number (3638677500).

Almost surely, 2^99799998424 is an apocalyptic number.

It is an amenable number.

99799998424 is an abundant number, since it is smaller than the sum of its proper divisors (133075361576).

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

99799998424 is a wasteful number, since it uses less digits than its factorization.

99799998424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234440 (or 3234436 counting only the distinct ones).

The product of its digits is 952342272, while the sum is 79.

The spelling of 99799998424 in words is "ninety-nine billion, seven hundred ninety-nine million, nine hundred ninety-eight thousand, four hundred twenty-four".