9528957728 has 24 divisors (see below), whose sum is σ = 18763765020. Its totient is φ = 4763557120.

The previous prime is 9528957719. The next prime is 9528957769. The reversal of 9528957728 is 8277598259.

It is a happy number.

9528957728 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 2 ways, for example, as 9095818384 + 433139344 = 95372^2 + 20812^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157778 + ... + 209646.

Almost surely, 2^9528957728 is an apocalyptic number.

It is an amenable number.

9528957728 is a deficient number, since it is larger than the sum of its proper divisors (9234807292).

9528957728 is a wasteful number, since it uses less digits than its factorization.

9528957728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57620 (or 57612 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 62.

The square root of 9528957728 is about 97616.3804286965. The cubic root of 9528957728 is about 2120.0615361277.

The spelling of 9528957728 in words is "nine billion, five hundred twenty-eight million, nine hundred fifty-seven thousand, seven hundred twenty-eight".