8889999888 has 160 divisors (see below), whose sum is σ = 28896721920. Its totient is φ = 2287802880.

The previous prime is 8889999887. The next prime is 8889999917.

8889999888 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 8889999888.

It is not an unprimeable number, because it can be changed into a prime (8889999887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391831 + ... + 413897.

It is an arithmetic number, because the mean of its divisors is an integer number (180604512).

Almost surely, 2^8889999888 is an apocalyptic number.

8889999888 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8889999888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14448360960).

8889999888 is an abundant number, since it is smaller than the sum of its proper divisors (20006722032).

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

8889999888 is a wasteful number, since it uses less digits than its factorization.

8889999888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22205 (or 22199 counting only the distinct ones).

The product of its digits is 1719926784, while the sum is 84.

The square root of 8889999888 is about 94286.7959366528. The cubic root of 8889999888 is about 2071.5746370210.

The spelling of 8889999888 in words is "eight billion, eight hundred eighty-nine million, nine hundred ninety-nine thousand, eight hundred eighty-eight".