9800128941680 has 320 divisors, whose sum is σ = 30090198961152. Its totient is φ = 2873803653120.

The previous prime is 9800128941679. The next prime is 9800128941703. The reversal of 9800128941680 is 861498210089.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 297074147 + ... + 297107133.

Almost surely, 2^{9800128941680} 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 9800128941680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15045099480576).

9800128941680 is an abundant number, since it is smaller than the sum of its proper divisors (20290070019472).

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

9800128941680 is a wasteful number, since it uses less digits than its factorization.

9800128941680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35872 (or 35866 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 56.

The spelling of 9800128941680 in words is "nine trillion, eight hundred billion, one hundred twenty-eight million, nine hundred forty-one thousand, six hundred eighty".