9998800581800 has 96 divisors (see below), whose sum is σ = 24543365433600. Its totient is φ = 3777775303680.

The previous prime is 9998800581797. The next prime is 9998800581851. The reversal of 9998800581800 is 81850088999.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2623352 + ... + 5184551.

It is an arithmetic number, because the mean of its divisors is an integer number (255660056600).

Almost surely, 2^{9998800581800} is an apocalyptic number.

It is an amenable number.

9998800581800 is an abundant number, since it is smaller than the sum of its proper divisors (14544564851800).

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

9998800581800 is a wasteful number, since it uses less digits than its factorization.

9998800581800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7808275 (or 7808266 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 65.

The spelling of 9998800581800 in words is "nine trillion, nine hundred ninety-eight billion, eight hundred million, five hundred eighty-one thousand, eight hundred".