7489528640 has 224 divisors, whose sum is σ = 20576194560. Its totient is φ = 2569881600.

The previous prime is 7489528609. The next prime is 7489528667. The reversal of 7489528640 is 468259847.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6395255 + ... + 6396425.

Almost surely, 2^7489528640 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 7489528640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10288097280).

7489528640 is an abundant number, since it is smaller than the sum of its proper divisors (13086665920).

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

7489528640 is a wasteful number, since it uses less digits than its factorization.

7489528640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301 (or 1291 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The square root of 7489528640 is about 86542.0628365190. The cubic root of 7489528640 is about 1956.5224187715.

The spelling of 7489528640 in words is "seven billion, four hundred eighty-nine million, five hundred twenty-eight thousand, six hundred forty".