128545195024 has 15 divisors (see below), whose sum is σ = 249059094013. Its totient is φ = 64271880448.

The previous prime is 128545195013. The next prime is 128545195043. The reversal of 128545195024 is 420591545821.

It is a happy number.

The square root of 128545195024 is 358532.

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

It can be written as a sum of positive squares in only one way, i.e., 5742608400 + 122802586624 = 75780^2 + 350432^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1389312 + ... + 1478944.

Almost surely, 2^128545195024 is an apocalyptic number.

128545195024 is the 358532-nd square number.

It is an amenable number.

128545195024 is a deficient number, since it is larger than the sum of its proper divisors (120513898989).

128545195024 is an frugal number, since it uses more digits than its factorization.

128545195024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179274 (or 89635 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 128545195024 in words is "one hundred twenty-eight billion, five hundred forty-five million, one hundred ninety-five thousand, twenty-four".