2389065128 has 8 divisors (see below), whose sum is σ = 4479497130. Its totient is φ = 1194532560.

The previous prime is 2389065101. The next prime is 2389065137. The reversal of 2389065128 is 8215609832.

2389065128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1773925924 + 615139204 = 42118^2 + 24802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149316563 + ... + 149316578.

Almost surely, 2^2389065128 is an apocalyptic number.

It is an amenable number.

2389065128 is a deficient number, since it is larger than the sum of its proper divisors (2090432002).

2389065128 is a wasteful number, since it uses less digits than its factorization.

2389065128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298633147 (or 298633143 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 2389065128 is about 48878.0638732755. The cubic root of 2389065128 is about 1336.8294253820.

The spelling of 2389065128 in words is "two billion, three hundred eighty-nine million, sixty-five thousand, one hundred twenty-eight".