128576648 has 36 divisors (see below), whose sum is σ = 255649095. Its totient is φ = 60616080.

The previous prime is 128576641. The next prime is 128576653. The reversal of 128576648 is 846675821.

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 only one way, i.e., 64288324 + 64288324 = 8018^2 + 8018^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8018.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128576641) 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, 609263 + ... + 609473.

Almost surely, 2^128576648 is an apocalyptic number.

It is an amenable number.

128576648 is a deficient number, since it is larger than the sum of its proper divisors (127072447).

128576648 is an equidigital number, since it uses as much as digits as its factorization.

128576648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 232 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 128576648 is about 11339.1643431075. The cubic root of 128576648 is about 504.7240893888.

The spelling of 128576648 in words is "one hundred twenty-eight million, five hundred seventy-six thousand, six hundred forty-eight".