985887409584 has 240 divisors, whose sum is σ = 3336289606656. Its totient is φ = 247813977600.

The previous prime is 985887409583. The next prime is 985887409601. The reversal of 985887409584 is 485904788589.

It is not an unprimeable number, because it can be changed into a prime (985887409583) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187414 + ... + 1416650.

Almost surely, 2^985887409584 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 985887409584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1668144803328).

985887409584 is an abundant number, since it is smaller than the sum of its proper divisors (2350402197072).

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

985887409584 is a wasteful number, since it uses less digits than its factorization.

985887409584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229304 (or 1229291 counting only the distinct ones).

The product of its (nonzero) digits is 928972800, while the sum is 75.

The spelling of 985887409584 in words is "nine hundred eighty-five billion, eight hundred eighty-seven million, four hundred nine thousand, five hundred eighty-four".