844212805234722 has 192 divisors, whose sum is σ = 2302364325381120. Its totient is φ = 217172620195200.

The previous prime is 844212805234609. The next prime is 844212805234751. The reversal of 844212805234722 is 227432508212448.

It is a happy number.

844212805234722 is a `hidden beast` number, since 8 + 4 + 4 + 2 + 12 + 80 + 523 + 4 + 7 + 22 = 666.

It is a super-2 number, since 2×844212805234722² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 357018033 + ... + 359374875.

It is an arithmetic number, because the mean of its divisors is an integer number (11991480861360).

Almost surely, 2^{844212805234722} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844212805234722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151182162690560).

844212805234722 is an abundant number, since it is smaller than the sum of its proper divisors (1458151520146398).

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

844212805234722 is a wasteful number, since it uses less digits than its factorization.

844212805234722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359349 (or 2359346 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 54.

The spelling of 844212805234722 in words is "eight hundred forty-four trillion, two hundred twelve billion, eight hundred five million, two hundred thirty-four thousand, seven hundred twenty-two".