889666525666988 has 24 divisors (see below), whose sum is σ = 1560667964854320. Its totient is φ = 443761465170240.

The previous prime is 889666525666979. The next prime is 889666525666993.

889666525666988 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 889666525666894 and 889666525666903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40263995 + ... + 58313997.

It is an arithmetic number, because the mean of its divisors is an integer number (65027831868930).

Almost surely, 2^{889666525666988} is an apocalyptic number.

It is an amenable number.

889666525666988 is a deficient number, since it is larger than the sum of its proper divisors (671001439187332).

889666525666988 is a wasteful number, since it uses less digits than its factorization.

889666525666988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18079697 (or 18079695 counting only the distinct ones).

The product of its digits is 773967052800, while the sum is 98.

The spelling of 889666525666988 in words is "eight hundred eighty-nine trillion, six hundred sixty-six billion, five hundred twenty-five million, six hundred sixty-six thousand, nine hundred eighty-eight".