9618563328 has 144 divisors (see below), whose sum is σ = 27984289536. Its totient is φ = 2908702720.

The previous prime is 9618563281. The next prime is 9618563341. The reversal of 9618563328 is 8233658169.

It is a happy 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, 5769151 + ... + 5770817.

It is an arithmetic number, because the mean of its divisors is an integer number (194335344).

Almost surely, 2^9618563328 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 9618563328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13992144768).

9618563328 is an abundant number, since it is smaller than the sum of its proper divisors (18365726208).

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

9618563328 is a wasteful number, since it uses less digits than its factorization.

9618563328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380 (or 2366 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 9618563328 is about 98074.2745474062. The cubic root of 9618563328 is about 2126.6861507481.

The spelling of 9618563328 in words is "nine billion, six hundred eighteen million, five hundred sixty-three thousand, three hundred twenty-eight".