844186089616 has 15 divisors (see below), whose sum is σ = 1635617669331. Its totient is φ = 422091207216.

The previous prime is 844186089601. The next prime is 844186089647. The reversal of 844186089616 is 616980681448.

The square root of 844186089616 is 918796.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 3560335 + ... + 3790033.

Almost surely, 2^844186089616 is an apocalyptic number.

844186089616 is the 918796-th square number.

It is an amenable number.

844186089616 is a deficient number, since it is larger than the sum of its proper divisors (791431579715).

844186089616 is an frugal number, since it uses more digits than its factorization.

844186089616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459406 (or 229701 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 61.

The spelling of 844186089616 in words is "eight hundred forty-four billion, one hundred eighty-six million, eighty-nine thousand, six hundred sixteen".