9124728320 has 80 divisors (see below), whose sum is σ = 21904410528. Its totient is φ = 3645480960.

The previous prime is 9124728317. The next prime is 9124728401. The reversal of 9124728320 is 238274219.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2857925 + ... + 2861115.

Almost surely, 2^9124728320 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 9124728320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10952205264).

9124728320 is an abundant number, since it is smaller than the sum of its proper divisors (12779682208).

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

9124728320 is a wasteful number, since it uses less digits than its factorization.

9124728320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331 (or 4315 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 9124728320 is about 95523.4438240163. The cubic root of 9124728320 is about 2089.6488593022.

The spelling of 9124728320 in words is "nine billion, one hundred twenty-four million, seven hundred twenty-eight thousand, three hundred twenty".