889774477988 has 24 divisors (see below), whose sum is σ = 1700388486720. Its totient is φ = 404031487520.

The previous prime is 889774477981. The next prime is 889774477993.

889774477988 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (889774477981) 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, 10242683 + ... + 10329186.

It is an arithmetic number, because the mean of its divisors is an integer number (70849520280).

Almost surely, 2^889774477988 is an apocalyptic number.

It is an amenable number.

889774477988 is a deficient number, since it is larger than the sum of its proper divisors (810614008732).

889774477988 is a wasteful number, since it uses less digits than its factorization.

889774477988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20572867 (or 20572865 counting only the distinct ones).

The product of its digits is 12745506816, while the sum is 86.

The spelling of 889774477988 in words is "eight hundred eighty-nine billion, seven hundred seventy-four million, four hundred seventy-seven thousand, nine hundred eighty-eight".