985866109410 has 128 divisors (see below), whose sum is σ = 2916899241984. Its totient is φ = 207663886080.

The previous prime is 985866109369. The next prime is 985866109421. The reversal of 985866109410 is 14901668589.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1359645 + ... + 1954575.

It is an arithmetic number, because the mean of its divisors is an integer number (22788275328).

Almost surely, 2^985866109410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 985866109410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458449620992).

985866109410 is an abundant number, since it is smaller than the sum of its proper divisors (1931033132574).

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

985866109410 is a wasteful number, since it uses less digits than its factorization.

985866109410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595568.

The product of its (nonzero) digits is 3732480, while the sum is 57.

The spelling of 985866109410 in words is "nine hundred eighty-five billion, eight hundred sixty-six million, one hundred nine thousand, four hundred ten".