998642960700 has 576 divisors, whose sum is σ = 3730873208832. Its totient is φ = 200225894400.

The previous prime is 998642960681. The next prime is 998642960797. The reversal of 998642960700 is 7069246899.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 82437844 + ... + 82449956.

It is an arithmetic number, because the mean of its divisors is an integer number (6477210432).

Almost surely, 2^998642960700 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 998642960700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1865436604416).

998642960700 is an abundant number, since it is smaller than the sum of its proper divisors (2732230248132).

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

998642960700 is a wasteful number, since it uses less digits than its factorization.

998642960700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12274 (or 12267 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 998642960700 in words is "nine hundred ninety-eight billion, six hundred forty-two million, nine hundred sixty thousand, seven hundred".