844650477117 has 6 divisors (see below), whose sum is σ = 1220050689182. Its totient is φ = 563100318072.

The previous prime is 844650477091. The next prime is 844650477169. The reversal of 844650477117 is 711774056448.

844650477117 is a `hidden beast` number, since 8 + 4 + 4 + 6 + 50 + 477 + 117 = 666.

It can be written as a sum of positive squares in only one way, i.e., 805911971076 + 38738506041 = 897726^2 + 196821^2 .

It is not a de Polignac number, because 844650477117 - 2¹⁶ = 844650411581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844650477217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46925026498 + ... + 46925026515.

Almost surely, 2^844650477117 is an apocalyptic number.

It is an amenable number.

844650477117 is a deficient number, since it is larger than the sum of its proper divisors (375400212065).

844650477117 is a wasteful number, since it uses less digits than its factorization.

844650477117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93850053019 (or 93850053016 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 54.

The spelling of 844650477117 in words is "eight hundred forty-four billion, six hundred fifty million, four hundred seventy-seven thousand, one hundred seventeen".