128380552328 has 36 divisors (see below), whose sum is σ = 280029178485. Its totient is φ = 55017196416.

The previous prime is 128380552327. The next prime is 128380552331. The reversal of 128380552328 is 823255083821.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 107477754244 + 20902798084 = 327838^2 + 144578^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=253358.

It is not an unprimeable number, because it can be changed into a prime (128380552327) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7084976 + ... + 7103072.

Almost surely, 2^128380552328 is an apocalyptic number.

It is an amenable number.

128380552328 is an abundant number, since it is smaller than the sum of its proper divisors (151648626157).

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

128380552328 is an frugal number, since it uses more digits than its factorization.

128380552328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36214 (or 18106 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 128380552328 in words is "one hundred twenty-eight billion, three hundred eighty million, five hundred fifty-two thousand, three hundred twenty-eight".