844017821107 has 8 divisors (see below), whose sum is σ = 862239324672. Its totient is φ = 825807304200.

The previous prime is 844017821099. The next prime is 844017821111. The reversal of 844017821107 is 701128710448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 844017821107 - 2³ = 844017821099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (844017861107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2591269 + ... + 2898742.

It is an arithmetic number, because the mean of its divisors is an integer number (107779915584).

Almost surely, 2^844017821107 is an apocalyptic number.

844017821107 is a deficient number, since it is larger than the sum of its proper divisors (18221503565).

844017821107 is a wasteful number, since it uses less digits than its factorization.

844017821107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5493329.

The product of its (nonzero) digits is 100352, while the sum is 43.

The spelling of 844017821107 in words is "eight hundred forty-four billion, seventeen million, eight hundred twenty-one thousand, one hundred seven".