888888899999999 has 4 divisors (see below), whose sum is σ = 888999472081680. Its totient is φ = 888778327918320.

The previous prime is 888888899999981. The next prime is 888888900000037. The reversal of 888888899999999 is 999999998888888.

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 888888899999999 - 2¹⁶ = 888888899934463 is a prime.

It is a Duffinian number.

888888899999999 is a modest number, since divided by 99999999 gives 8888888 as remainder.

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 (888888899999909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55286028782 + ... + 55286044859.

It is an arithmetic number, because the mean of its divisors is an integer number (222249868020420).

Almost surely, 2^{888888899999999} is an apocalyptic number.

888888899999999 is a deficient number, since it is larger than the sum of its proper divisors (110572081681).

888888899999999 is a wasteful number, since it uses less digits than its factorization.

888888899999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110572081680.

The product of its digits is 90275517038592, while the sum is 128.

The spelling of 888888899999999 in words is "eight hundred eighty-eight trillion, eight hundred eighty-eight billion, eight hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".