887973085989 has 12 divisors (see below), whose sum is σ = 1399230317472. Its totient is φ = 538165506600.

The previous prime is 887973085919. The next prime is 887973085999. The reversal of 887973085989 is 989580379788.

887973085989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 887973085989 - 2⁹ = 887973085477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887973085919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4484712457 + ... + 4484712654.

It is an arithmetic number, because the mean of its divisors is an integer number (116602526456).

Almost surely, 2^887973085989 is an apocalyptic number.

It is an amenable number.

887973085989 is a deficient number, since it is larger than the sum of its proper divisors (511257231483).

887973085989 is a wasteful number, since it uses less digits than its factorization.

887973085989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969425128 (or 8969425125 counting only the distinct ones).

The product of its (nonzero) digits is 2194698240, while the sum is 81.

The spelling of 887973085989 in words is "eight hundred eighty-seven billion, nine hundred seventy-three million, eighty-five thousand, nine hundred eighty-nine".