9638834365 has 16 divisors (see below), whose sum is σ = 12072240000. Its totient is φ = 7374127552.

The previous prime is 9638834341. The next prime is 9638834431. The reversal of 9638834365 is 5634388369.

9638834365 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9638834365 - 2²³ = 9630445757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787311 + ... + 799459.

It is an arithmetic number, because the mean of its divisors is an integer number (754515000).

Almost surely, 2^9638834365 is an apocalyptic number.

It is an amenable number.

9638834365 is a deficient number, since it is larger than the sum of its proper divisors (2433405635).

9638834365 is a wasteful number, since it uses less digits than its factorization.

9638834365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19076.

The product of its digits is 11197440, while the sum is 55.

The square root of 9638834365 is about 98177.5654872334. The cubic root of 9638834365 is about 2128.1790931917.

The spelling of 9638834365 in words is "nine billion, six hundred thirty-eight million, eight hundred thirty-four thousand, three hundred sixty-five".