99938683637 has 32 divisors (see below), whose sum is σ = 111142886400. Its totient is φ = 89286220800.

The previous prime is 99938683597. The next prime is 99938683651. The reversal of 99938683637 is 73638683999.

It is a cyclic number.

It is not a de Polignac number, because 99938683637 - 2¹⁴ = 99938667253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99938683667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21494489 + ... + 21499137.

It is an arithmetic number, because the mean of its divisors is an integer number (3473215200).

Almost surely, 2^99938683637 is an apocalyptic number.

It is an amenable number.

99938683637 is a deficient number, since it is larger than the sum of its proper divisors (11204202763).

99938683637 is a wasteful number, since it uses less digits than its factorization.

99938683637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093.

The product of its digits is 317447424, while the sum is 71.

The spelling of 99938683637 in words is "ninety-nine billion, nine hundred thirty-eight million, six hundred eighty-three thousand, six hundred thirty-seven".