889563365988 has 96 divisors (see below), whose sum is σ = 2327231477760. Its totient is φ = 262179815040.

The previous prime is 889563365987. The next prime is 889563366007.

889563365988 is nontrivially palindromic in base 10.

889563365988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×889563365988² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (889563365987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62070 + ... + 1335282.

It is an arithmetic number, because the mean of its divisors is an integer number (24241994560).

Almost surely, 2^889563365988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889563365988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1163615738880).

889563365988 is an abundant number, since it is smaller than the sum of its proper divisors (1437668111772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

889563365988 is a wasteful number, since it uses less digits than its factorization.

889563365988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273377 (or 1273375 counting only the distinct ones).

The product of its digits is 2687385600, while the sum is 78.

The spelling of 889563365988 in words is "eight hundred eighty-nine billion, five hundred sixty-three million, three hundred sixty-five thousand, nine hundred eighty-eight".