450642323622657 has 4 divisors (see below), whose sum is σ = 600856431496880. Its totient is φ = 300428215748436.

The previous prime is 450642323622607. The next prime is 450642323622823. The reversal of 450642323622657 is 756226323246054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 450642323622657 - 2¹² = 450642323618561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450642323622597 and 450642323622606.

It is not an unprimeable number, because it can be changed into a prime (450642323622607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75107053937107 + ... + 75107053937112.

It is an arithmetic number, because the mean of its divisors is an integer number (150214107874220).

Almost surely, 2^{450642323622657} is an apocalyptic number.

It is an amenable number.

450642323622657 is a deficient number, since it is larger than the sum of its proper divisors (150214107874223).

450642323622657 is a wasteful number, since it uses less digits than its factorization.

450642323622657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150214107874222.

The product of its (nonzero) digits is 87091200, while the sum is 57.

The spelling of 450642323622657 in words is "four hundred fifty trillion, six hundred forty-two billion, three hundred twenty-three million, six hundred twenty-two thousand, six hundred fifty-seven".