450642323622822 has 32 divisors (see below), whose sum is σ = 919118052948960. Its totient is φ = 147246984917760.

The previous prime is 450642323622607. The next prime is 450642323622823. The reversal of 450642323622822 is 228226323246054.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450642323622823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638562679 + ... + 639268002.

It is an arithmetic number, because the mean of its divisors is an integer number (28722439154655).

Almost surely, 2^{450642323622822} is an apocalyptic number.

450642323622822 is an abundant number, since it is smaller than the sum of its proper divisors (468475729326138).

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

450642323622822 is a wasteful number, since it uses less digits than its factorization.

450642323622822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277831848.

The product of its (nonzero) digits is 13271040, while the sum is 51.

Adding to 450642323622822 its reverse (228226323246054), we get a palindrome (678868646868876).

The spelling of 450642323622822 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-two".