889744447988 has 24 divisors (see below), whose sum is σ = 1702240341984. Its totient is φ = 403563269600.

The previous prime is 889744447987. The next prime is 889744448029.

889744447988 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889744447987) 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 7 ways as a sum of consecutive naturals, for example, 21629843 + ... + 21670938.

It is an arithmetic number, because the mean of its divisors is an integer number (70926680916).

Almost surely, 2^889744447988 is an apocalyptic number.

It is an amenable number.

889744447988 is a deficient number, since it is larger than the sum of its proper divisors (812495893996).

889744447988 is a wasteful number, since it uses less digits than its factorization.

889744447988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43301263 (or 43301261 counting only the distinct ones).

The product of its digits is 4161798144, while the sum is 80.

The spelling of 889744447988 in words is "eight hundred eighty-nine billion, seven hundred forty-four million, four hundred forty-seven thousand, nine hundred eighty-eight".