844694546022 has 128 divisors (see below), whose sum is σ = 1970865561600. Its totient is φ = 267834470400.

The previous prime is 844694545999. The next prime is 844694546051. The reversal of 844694546022 is 220645496448.

844694546022 is a `hidden beast` number, since 8 + 4 + 4 + 6 + 94 + 546 + 0 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 844694546022.

It is a congruent number.

It is an unprimeable number.

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, 40043254 + ... + 40064342.

It is an arithmetic number, because the mean of its divisors is an integer number (15397387200).

Almost surely, 2^844694546022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844694546022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985432780800).

844694546022 is an abundant number, since it is smaller than the sum of its proper divisors (1126171015578).

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

844694546022 is a wasteful number, since it uses less digits than its factorization.

844694546022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21539 (or 21533 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 844694546022 in words is "eight hundred forty-four billion, six hundred ninety-four million, five hundred forty-six thousand, twenty-two".