822540158716481 has 2 divisors, whose sum is σ = 822540158716482. Its totient is φ = 822540158716480.

The previous prime is 822540158716379. The next prime is 822540158716517. The reversal of 822540158716481 is 184617851045228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672217625665600 + 150322533050881 = 25927160^2 + 12260609^2 .

It is a cyclic number.

It is not a de Polignac number, because 822540158716481 - 2¹⁴ = 822540158700097 is a prime.

It is a super-2 number, since 2×822540158716481² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (822540158716681) by changing a digit.

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 as a sum of consecutive naturals, namely, 411270079358240 + 411270079358241.

It is an arithmetic number, because the mean of its divisors is an integer number (411270079358241).

Almost surely, 2^{822540158716481} is an apocalyptic number.

It is an amenable number.

822540158716481 is a deficient number, since it is larger than the sum of its proper divisors (1).

822540158716481 is an equidigital number, since it uses as much as digits as its factorization.

822540158716481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34406400, while the sum is 62.

The spelling of 822540158716481 in words is "eight hundred twenty-two trillion, five hundred forty billion, one hundred fifty-eight million, seven hundred sixteen thousand, four hundred eighty-one".