985563797504 has 384 divisors, whose sum is σ = 2503403884800. Its totient is φ = 381091184640.

The previous prime is 985563797483. The next prime is 985563797567. The reversal of 985563797504 is 405797365589.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205880999 + ... + 205885785.

It is an arithmetic number, because the mean of its divisors is an integer number (6519280950).

Almost surely, 2^985563797504 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 985563797504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251701942400).

985563797504 is an abundant number, since it is smaller than the sum of its proper divisors (1517840087296).

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

985563797504 is a wasteful number, since it uses less digits than its factorization.

985563797504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4889 (or 4869 counting only the distinct ones).

The product of its (nonzero) digits is 285768000, while the sum is 68.

The spelling of 985563797504 in words is "nine hundred eighty-five billion, five hundred sixty-three million, seven hundred ninety-seven thousand, five hundred four".