9808398864 has 200 divisors, whose sum is σ = 31479592320. Its totient is φ = 2923257600.

The previous prime is 9808398851. The next prime is 9808398913. The reversal of 9808398864 is 4688938089.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 863977 + ... + 875255.

Almost surely, 2^9808398864 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 9808398864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15739796160).

9808398864 is an abundant number, since it is smaller than the sum of its proper divisors (21671193456).

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

9808398864 is a wasteful number, since it uses less digits than its factorization.

9808398864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11371 (or 11356 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The square root of 9808398864 is about 99037.3609503000. The cubic root of 9808398864 is about 2140.5861252987.

The spelling of 9808398864 in words is "nine billion, eight hundred eight million, three hundred ninety-eight thousand, eight hundred sixty-four".