9898642917600 has 864 divisors, whose sum is σ = 35629594247520. Its totient is φ = 2375940833280.

The previous prime is 9898642917599. The next prime is 9898642917641. The reversal of 9898642917600 is 67192468989.

It is a super-2 number, since 2×9898642917600² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22860606984 + ... + 22860607416.

It is an arithmetic number, because the mean of its divisors is an integer number (41237956305).

Almost surely, 2^{9898642917600} 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 9898642917600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17814797123760).

9898642917600 is an abundant number, since it is smaller than the sum of its proper divisors (25730951329920).

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

9898642917600 is a wasteful number, since it uses less digits than its factorization.

9898642917600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 69.

The spelling of 9898642917600 in words is "nine trillion, eight hundred ninety-eight billion, six hundred forty-two million, nine hundred seventeen thousand, six hundred".