989746643200 has 216 divisors, whose sum is σ = 2831215040640. Its totient is φ = 335527526400.

The previous prime is 989746643167. The next prime is 989746643203. The reversal of 989746643200 is 2346647989.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (989746643203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3863085 + ... + 4111315.

It is an arithmetic number, because the mean of its divisors is an integer number (13107477040).

Almost surely, 2^989746643200 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 989746643200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415607520320).

989746643200 is an abundant number, since it is smaller than the sum of its proper divisors (1841468397440).

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

989746643200 is a wasteful number, since it uses less digits than its factorization.

989746643200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248353 (or 248334 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 989746643200 in words is "nine hundred eighty-nine billion, seven hundred forty-six million, six hundred forty-three thousand, two hundred".