888888888889999 has 4 divisors (see below), whose sum is σ = 888895319022880. Its totient is φ = 888882458757120.

The previous prime is 888888888889993. The next prime is 888888888890071. The reversal of 888888888889999 is 999988888888888.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 888888888889999 - 2⁷ = 888888888889871 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (888888888889993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3214859079 + ... + 3215135560.

It is an arithmetic number, because the mean of its divisors is an integer number (222223829755720).

Almost surely, 2^{888888888889999} is an apocalyptic number.

888888888889999 is a deficient number, since it is larger than the sum of its proper divisors (6430132881).

888888888889999 is a wasteful number, since it uses less digits than its factorization.

888888888889999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430132880.

The product of its digits is 56358560858112, while the sum is 124.

The spelling of 888888888889999 in words is "eight hundred eighty-eight trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-nine thousand, nine hundred ninety-nine".