450642323622859 has 2 divisors, whose sum is σ = 450642323622860. Its totient is φ = 450642323622858.

The previous prime is 450642323622823. The next prime is 450642323622913. The reversal of 450642323622859 is 958226323246054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450642323622859 - 2²⁷ = 450642189405131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450642323622797 and 450642323622806.

It is not a weakly prime, because it can be changed into another prime (450642323622559) 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, 225321161811429 + 225321161811430.

It is an arithmetic number, because the mean of its divisors is an integer number (225321161811430).

Almost surely, 2^{450642323622859} is an apocalyptic number.

450642323622859 is a deficient number, since it is larger than the sum of its proper divisors (1).

450642323622859 is an equidigital number, since it uses as much as digits as its factorization.

450642323622859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 149299200, while the sum is 61.

The spelling of 450642323622859 in words is "four hundred fifty trillion, six hundred forty-two billion, three hundred twenty-three million, six hundred twenty-two thousand, eight hundred fifty-nine".