128043740224 has 21 divisors (see below), whose sum is σ = 254092477717. Its totient is φ = 64020438784.

The previous prime is 128043740221. The next prime is 128043740263. The reversal of 128043740224 is 422047340821.

The square root of 128043740224 is 357832.

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., 98953026624 + 29090713600 = 314568^2 + 170560^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128043740221) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2840292 + ... + 2885020.

Almost surely, 2^128043740224 is an apocalyptic number.

128043740224 is the 357832-nd square number.

It is an amenable number.

128043740224 is a deficient number, since it is larger than the sum of its proper divisors (126048737493).

128043740224 is an frugal number, since it uses more digits than its factorization.

128043740224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89470 (or 44731 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 37.

The spelling of 128043740224 in words is "one hundred twenty-eight billion, forty-three million, seven hundred forty thousand, two hundred twenty-four".