9527728380 has 96 divisors (see below), whose sum is σ = 28362991104. Its totient is φ = 2384388864.

The previous prime is 9527728373. The next prime is 9527728393. The reversal of 9527728380 is 838277259.

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, 8007 + ... + 138273.

It is an arithmetic number, because the mean of its divisors is an integer number (295447824).

Almost surely, 2^9527728380 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 9527728380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14181495552).

9527728380 is an abundant number, since it is smaller than the sum of its proper divisors (18835262724).

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

9527728380 is a wasteful number, since it uses less digits than its factorization.

9527728380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130355 (or 130353 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 9527728380 is about 97610.0833930593. The cubic root of 9527728380 is about 2119.9703612209.

The spelling of 9527728380 in words is "nine billion, five hundred twenty-seven million, seven hundred twenty-eight thousand, three hundred eighty".