985091819712 has 672 divisors, whose sum is σ = 3612496817664. Its totient is φ = 232836710400.

The previous prime is 985091819707. The next prime is 985091819753. The reversal of 985091819712 is 217918190589.

It is a tau number, because it is divible by the number of its divisors (672).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 95514268 + ... + 95524580.

It is an arithmetic number, because the mean of its divisors is an integer number (5375739312).

Almost surely, 2^985091819712 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 985091819712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1806248408832).

985091819712 is an abundant number, since it is smaller than the sum of its proper divisors (2627404997952).

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

985091819712 is a wasteful number, since it uses less digits than its factorization.

985091819712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10437 (or 10420 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 60.

The spelling of 985091819712 in words is "nine hundred eighty-five billion, ninety-one million, eight hundred nineteen thousand, seven hundred twelve".