450642323622823 has 2 divisors, whose sum is σ = 450642323622824. Its totient is φ = 450642323622822.

The previous prime is 450642323622607. The next prime is 450642323622859. The reversal of 450642323622823 is 328226323246054.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 450642323622823 - 2⁴⁵ = 415457951533991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450642323622223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225321161811411 + 225321161811412.

It is an arithmetic number, because the mean of its divisors is an integer number (225321161811412).

Almost surely, 2^{450642323622823} is an apocalyptic number.

450642323622823 is a deficient number, since it is larger than the sum of its proper divisors (1).

450642323622823 is an equidigital number, since it uses as much as digits as its factorization.

450642323622823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19906560, while the sum is 52.

Adding to 450642323622823 its reverse (328226323246054), we get a palindrome (778868646868877).

The spelling of 450642323622823 in words is "four hundred fifty trillion, six hundred forty-two billion, three hundred twenty-three million, six hundred twenty-two thousand, eight hundred twenty-three".