9798078384 has 640 divisors, whose sum is σ = 33940684800. Its totient is φ = 2682408960.

The previous prime is 9798078379. The next prime is 9798078397. The reversal of 9798078384 is 4838708979.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 138001069 + ... + 138001139.

It is an arithmetic number, because the mean of its divisors is an integer number (53032320).

Almost surely, 2^9798078384 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 9798078384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16970342400).

9798078384 is an abundant number, since it is smaller than the sum of its proper divisors (24142606416).

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

9798078384 is a wasteful number, since it uses less digits than its factorization.

9798078384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The square root of 9798078384 is about 98985.2432638320. The cubic root of 9798078384 is about 2139.8350808944.

The spelling of 9798078384 in words is "nine billion, seven hundred ninety-eight million, seventy-eight thousand, three hundred eighty-four".