9638728316 has 12 divisors (see below), whose sum is σ = 19277456688. Its totient is φ = 4130883552.

The previous prime is 9638728313. The next prime is 9638728321. The reversal of 9638728316 is 6138278369.

9638728316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

9638728316 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9638728313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172120121 + ... + 172120176.

It is an arithmetic number, because the mean of its divisors is an integer number (1606454724).

Almost surely, 2^9638728316 is an apocalyptic number.

It is an amenable number.

9638728316 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

9638728316 is a wasteful number, since it uses less digits than its factorization.

9638728316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344240308 (or 344240306 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 9638728316 is about 98177.0253980024. The cubic root of 9638728316 is about 2128.1712882337.

The spelling of 9638728316 in words is "nine billion, six hundred thirty-eight million, seven hundred twenty-eight thousand, three hundred sixteen".