985690723584 has 576 divisors, whose sum is σ = 3331883520000. Its totient is φ = 257565450240.

The previous prime is 985690723583. The next prime is 985690723663. The reversal of 985690723584 is 485327096589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985690723583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 145143229 + ... + 145150019.

It is an arithmetic number, because the mean of its divisors is an integer number (5784520000).

Almost surely, 2^985690723584 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 985690723584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665941760000).

985690723584 is an abundant number, since it is smaller than the sum of its proper divisors (2346192796416).

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

985690723584 is a wasteful number, since it uses less digits than its factorization.

985690723584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6879 (or 6851 counting only the distinct ones).

The product of its (nonzero) digits is 130636800, while the sum is 66.

The spelling of 985690723584 in words is "nine hundred eighty-five billion, six hundred ninety million, seven hundred twenty-three thousand, five hundred eighty-four".