9998473562688 has 448 divisors, whose sum is σ = 30731836391424. Its totient is φ = 2843596800000.

The previous prime is 9998473562681. The next prime is 9998473562723. The reversal of 9998473562688 is 8862653748999.

It is a self number, because there is not a number n which added to its sum of digits gives 9998473562688.

It is not an unprimeable number, because it can be changed into a prime (9998473562681) 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, 1336511908 + ... + 1336519388.

It is an arithmetic number, because the mean of its divisors is an integer number (68597849088).

Almost surely, 2^{9998473562688} 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 9998473562688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15365918195712).

9998473562688 is an abundant number, since it is smaller than the sum of its proper divisors (20733362828736).

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

9998473562688 is a wasteful number, since it uses less digits than its factorization.

9998473562688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8314 (or 8304 counting only the distinct ones).

The product of its digits is 11287019520, while the sum is 84.

The spelling of 9998473562688 in words is "nine trillion, nine hundred ninety-eight billion, four hundred seventy-three million, five hundred sixty-two thousand, six hundred eighty-eight".