9911113888 has 48 divisors (see below), whose sum is σ = 21056698656. Its totient is φ = 4564949760.

The previous prime is 9911113873. The next prime is 9911113937. The reversal of 9911113888 is 8883111199.

It is a happy number.

9911113888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179995 + ... + 228517.

It is an arithmetic number, because the mean of its divisors is an integer number (438681222).

Almost surely, 2^9911113888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9911113888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10528349328).

9911113888 is an abundant number, since it is smaller than the sum of its proper divisors (11145584768).

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

9911113888 is a wasteful number, since it uses less digits than its factorization.

9911113888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49037 (or 49029 counting only the distinct ones).

The product of its digits is 124416, while the sum is 49.

The square root of 9911113888 is about 99554.5774336871. The cubic root of 9911113888 is about 2148.0323723862.

The spelling of 9911113888 in words is "nine billion, nine hundred eleven million, one hundred thirteen thousand, eight hundred eighty-eight".