841633768836 has 243 divisors, whose sum is σ = 2573038773669. Its totient is φ = 240169551552.

The previous prime is 841633768819. The next prime is 841633768849. The reversal of 841633768836 is 638867336148.

The square root of 841633768836 is 917406.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 740814818436 + 100818950400 = 860706^2 + 317520^2 .

It is a tau number, because it is divible by the number of its divisors (243).

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 1040338000 + ... + 1040338808.

Almost surely, 2^841633768836 is an apocalyptic number.

841633768836 is the 917406-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 841633768836

841633768836 is an abundant number, since it is smaller than the sum of its proper divisors (1731405004833).

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

841633768836 is an frugal number, since it uses more digits than its factorization.

841633768836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660 (or 821 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 841633768836 in words is "eight hundred forty-one billion, six hundred thirty-three million, seven hundred sixty-eight thousand, eight hundred thirty-six".