9782557328 has 20 divisors (see below), whose sum is σ = 18963570108. Its totient is φ = 4888732800.

The previous prime is 9782557321. The next prime is 9782557349. The reversal of 9782557328 is 8237552879.

It can be written as a sum of positive squares in 2 ways, for example, as 5590253824 + 4192303504 = 74768^2 + 64748^2 .

It is not an unprimeable number, because it can be changed into a prime (9782557321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127223 + ... + 189078.

Almost surely, 2^9782557328 is an apocalyptic number.

It is an amenable number.

9782557328 is a deficient number, since it is larger than the sum of its proper divisors (9181012780).

9782557328 is a wasteful number, since it uses less digits than its factorization.

9782557328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318242 (or 318236 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 56.

The square root of 9782557328 is about 98906.8113326883. The cubic root of 9782557328 is about 2138.7045853187.

The spelling of 9782557328 in words is "nine billion, seven hundred eighty-two million, five hundred fifty-seven thousand, three hundred twenty-eight".