99888537938 has 32 divisors (see below), whose sum is σ = 171569664000. Its totient is φ = 42726412944.

The previous prime is 99888537937. The next prime is 99888537941. The reversal of 99888537938 is 83973588899.

It is a super-2 number, since 2×99888537938² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (77) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (99888537937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29735903 + ... + 29739261.

It is an arithmetic number, because the mean of its divisors is an integer number (5361552000).

Almost surely, 2^99888537938 is an apocalyptic number.

99888537938 is a deficient number, since it is larger than the sum of its proper divisors (71681126062).

99888537938 is a wasteful number, since it uses less digits than its factorization.

99888537938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6854.

The product of its digits is 940584960, while the sum is 77.

The spelling of 99888537938 in words is "ninety-nine billion, eight hundred eighty-eight million, five hundred thirty-seven thousand, nine hundred thirty-eight".