8749974528 has 132 divisors (see below), whose sum is σ = 26752038300. Its totient is φ = 2745040896.

The previous prime is 8749974521. The next prime is 8749974547. The reversal of 8749974528 is 8254799478.

8749974528 is a `hidden beast` number, since 87 + 499 + 7 + 45 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7185613824 + 1564360704 = 84768^2 + 39552^2 .

It is not an unprimeable number, because it can be changed into a prime (8749974521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128748 + ... + 184596.

Almost surely, 2^8749974528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8749974528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13376019150).

8749974528 is an abundant number, since it is smaller than the sum of its proper divisors (18002063772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8749974528 is a wasteful number, since it uses less digits than its factorization.

8749974528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55892 (or 55871 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The square root of 8749974528 is about 93541.2985156824. The cubic root of 8749974528 is about 2060.6406503332.

The spelling of 8749974528 in words is "eight billion, seven hundred forty-nine million, nine hundred seventy-four thousand, five hundred twenty-eight".