99889118382 has 32 divisors (see below), whose sum is σ = 209157137280. Its totient is φ = 31760889440.

The previous prime is 99889118359. The next prime is 99889118521. The reversal of 99889118382 is 28381198899.

It is a super-2 number, since 2×99889118382² (a number of 23 digits) contains 22 as substring.

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, 3443844 + ... + 3472727.

It is an arithmetic number, because the mean of its divisors is an integer number (6536160540).

Almost surely, 2^99889118382 is an apocalyptic number.

99889118382 is an abundant number, since it is smaller than the sum of its proper divisors (109268018898).

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

99889118382 is a wasteful number, since it uses less digits than its factorization.

99889118382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6916688.

The product of its digits is 17915904, while the sum is 66.

The spelling of 99889118382 in words is "ninety-nine billion, eight hundred eighty-nine million, one hundred eighteen thousand, three hundred eighty-two".