8749125128 has 16 divisors (see below), whose sum is σ = 16482359760. Its totient is φ = 4353829200.

The previous prime is 8749125109. The next prime is 8749125137. The reversal of 8749125128 is 8215219478.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2589878 + ... + 2593253.

It is an arithmetic number, because the mean of its divisors is an integer number (1030147485).

Almost surely, 2^8749125128 is an apocalyptic number.

It is an amenable number.

8749125128 is a deficient number, since it is larger than the sum of its proper divisors (7733234632).

8749125128 is a wasteful number, since it uses less digits than its factorization.

8749125128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183348 (or 5183344 counting only the distinct ones).

The product of its digits is 322560, while the sum is 47.

The square root of 8749125128 is about 93536.7581649054. The cubic root of 8749125128 is about 2060.5739695750.

The spelling of 8749125128 in words is "eight billion, seven hundred forty-nine million, one hundred twenty-five thousand, one hundred twenty-eight".