9798954873984 has 512 divisors, whose sum is σ = 30025165209600. Its totient is φ = 3144124698624.

The previous prime is 9798954873979. The next prime is 9798954873989. The reversal of 9798954873984 is 4893784598979.

It is a happy number.

9798954873984 is a `hidden beast` number, since 9 + 7 + 9 + 8 + 95 + 487 + 39 + 8 + 4 = 666.

9798954873984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9798954873979) and next prime (9798954873989).

It is a junction number, because it is equal to n+sod(n) for n = 9798954873894 and 9798954873903.

It is not an unprimeable number, because it can be changed into a prime (9798954873989) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2963093259 + ... + 2963096565.

It is an arithmetic number, because the mean of its divisors is an integer number (58642900800).

Almost surely, 2^{9798954873984} 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 9798954873984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15012582604800).

9798954873984 is an abundant number, since it is smaller than the sum of its proper divisors (20226210335616).

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

9798954873984 is a wasteful number, since it uses less digits than its factorization.

9798954873984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657 (or 3639 counting only the distinct ones).

The product of its digits is 39504568320, while the sum is 90.

The spelling of 9798954873984 in words is "nine trillion, seven hundred ninety-eight billion, nine hundred fifty-four million, eight hundred seventy-three thousand, nine hundred eighty-four".