889521157152 has 144 divisors (see below), whose sum is σ = 2665556449920. Its totient is φ = 280601280000.

The previous prime is 889521157123. The next prime is 889521157153. The reversal of 889521157152 is 251751125988.

889521157152 is a `hidden beast` number, since 8 + 8 + 9 + 5 + 2 + 11 + 571 + 52 = 666.

889521157152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×889521157152² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (889521157153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5062777 + ... + 5235527.

It is an arithmetic number, because the mean of its divisors is an integer number (18510808680).

Almost surely, 2^889521157152 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 889521157152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1332778224960).

889521157152 is an abundant number, since it is smaller than the sum of its proper divisors (1776035292768).

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

889521157152 is a wasteful number, since it uses less digits than its factorization.

889521157152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173727 (or 173716 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 54.

The spelling of 889521157152 in words is "eight hundred eighty-nine billion, five hundred twenty-one million, one hundred fifty-seven thousand, one hundred fifty-two".