99888575229 has 12 divisors (see below), whose sum is σ = 144304297696. Its totient is φ = 66582783432.

The previous prime is 99888575221. The next prime is 99888575249. The reversal of 99888575229 is 92257588899.

99888575229 is a `hidden beast` number, since 9 + 98 + 8 + 8 + 5 + 7 + 522 + 9 = 666.

It is not a de Polignac number, because 99888575229 - 2³ = 99888575221 is a prime.

It is a super-2 number, since 2×99888575229² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99888575221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 733819 + ... + 859224.

Almost surely, 2^99888575229 is an apocalyptic number.

It is an amenable number.

99888575229 is a deficient number, since it is larger than the sum of its proper divisors (44415722467).

99888575229 is a wasteful number, since it uses less digits than its factorization.

99888575229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600016 (or 1600013 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 72.

The spelling of 99888575229 in words is "ninety-nine billion, eight hundred eighty-eight million, five hundred seventy-five thousand, two hundred twenty-nine".