822855860736 has 640 divisors, whose sum is σ = 2771162634240. Its totient is φ = 211211255808.

The previous prime is 822855860633. The next prime is 822855860777. The reversal of 822855860736 is 637068558228.

It is a self number, because there is not a number n which added to its sum of digits gives 822855860736.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 931886151 + ... + 931887033.

It is an arithmetic number, because the mean of its divisors is an integer number (4329941616).

Almost surely, 2^822855860736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 822855860736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385581317120).

822855860736 is an abundant number, since it is smaller than the sum of its proper divisors (1948306773504).

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

822855860736 is a wasteful number, since it uses less digits than its factorization.

822855860736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 60.

The spelling of 822855860736 in words is "eight hundred twenty-two billion, eight hundred fifty-five million, eight hundred sixty thousand, seven hundred thirty-six".