4500128889 has 27 divisors (see below), whose sum is σ = 6629718693. Its totient is φ = 2941455384.

The previous prime is 4500128879. The next prime is 4500128909. The reversal of 4500128889 is 9888210054.

It is a happy number.

The square root of 4500128889 is 67083.

It is a perfect power (a square), and thus also a powerful number.

4500128889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4500128889 - 2⁹ = 4500128377 is a prime.

It is a super-2 number, since 2×4500128889² = 40502320035224748642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4500128819) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11873502 + ... + 11873880.

Almost surely, 2^4500128889 is an apocalyptic number.

4500128889 is the 67083-rd square number.

4500128889 is the 33542-nd centered octagonal number.

It is an amenable number.

4500128889 is a deficient number, since it is larger than the sum of its proper divisors (2129589804).

4500128889 is an frugal number, since it uses more digits than its factorization.

4500128889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The cubic root of 4500128889 is about 1650.9793865969.

The spelling of 4500128889 in words is "four billion, five hundred million, one hundred twenty-eight thousand, eight hundred eighty-nine".