822646818050 has 162 divisors, whose sum is σ = 1663921313883. Its totient is φ = 302550655680.

The previous prime is 822646818043. The next prime is 822646818067. The reversal of 822646818050 is 50818646228.

It can be written as a sum of positive squares in 5 ways, for example, as 143088949441 + 679557868609 = 378271^2 + 824353^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=641345.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 822646818050.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 5239788572 + ... + 5239788728.

Almost surely, 2^822646818050 is an apocalyptic number.

822646818050 is an abundant number, since it is smaller than the sum of its proper divisors (841274495833).

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

822646818050 is a wasteful number, since it uses less digits than its factorization.

822646818050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 50.

Multiplying 822646818050 by its sum of digits (50), we get a square (41132340902500 = 6413450²).

822646818050 divided by its sum of digits (50) gives a square (16452936361 = 128269²).

The spelling of 822646818050 in words is "eight hundred twenty-two billion, six hundred forty-six million, eight hundred eighteen thousand, fifty".