888889999999999 has 8 divisors (see below), whose sum is σ = 913930281714240. Its totient is φ = 864009720086400.

The previous prime is 888889999999993. The next prime is 888890000000087. The reversal of 888889999999999 is 999999999988888.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-888889999999999 is a prime.

It is a super-9 number, since 9×888889999999999⁹ (a number of 136 digits) contains 999999999 as substring.

It is a Duffinian number.

888889999999999 is a modest number, since divided by 99999999 gives 8888899 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 (888889999999993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40000438894 + ... + 40000461115.

It is an arithmetic number, because the mean of its divisors is an integer number (114241285214280).

Almost surely, 2^{888889999999999} is an apocalyptic number.

888889999999999 is a deficient number, since it is larger than the sum of its proper divisors (25040281714241).

888889999999999 is a wasteful number, since it uses less digits than its factorization.

888889999999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80000900321.

The product of its digits is 114254951251968, while the sum is 130.

The spelling of 888889999999999 in words is "eight hundred eighty-eight trillion, eight hundred eighty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".