888888888888889 has 96 divisors (see below), whose sum is σ = 1068144490659840. Its totient is φ = 737127838556928.

The previous prime is 888888888888883. The next prime is 888888888888907. The reversal of 888888888888889 is 988888888888888.

It is not a de Polignac number, because 888888888888889 - 2⁷ = 888888888888761 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 888888888888889.

It is not an unprimeable number, because it can be changed into a prime (888888888888883) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 199885063864 + ... + 199885068310.

It is an arithmetic number, because the mean of its divisors is an integer number (11126505111040).

Almost surely, 2^{888888888888889} is an apocalyptic number.

It is an amenable number.

888888888888889 is a deficient number, since it is larger than the sum of its proper divisors (179255601770951).

888888888888889 is a wasteful number, since it uses less digits than its factorization.

888888888888889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499 (or 6492 counting only the distinct ones).

The product of its digits is 39582418599936, while the sum is 121.

Subtracting 888888888888889 from its reverse (988888888888888), we obtain a palindrome (99999999999999).

The spelling of 888888888888889 in words is "eight hundred eighty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred eighty-nine".