450950630821 has 4 divisors (see below), whose sum is σ = 451854340000. Its totient is φ = 450046921644.

The previous prime is 450950630789. The next prime is 450950630881. The reversal of 450950630821 is 128036059054.

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 a cyclic number.

It is not a de Polignac number, because 450950630821 - 2⁵ = 450950630789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450950630881) 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, 451853841 + ... + 451854838.

It is an arithmetic number, because the mean of its divisors is an integer number (112963585000).

Almost surely, 2^450950630821 is an apocalyptic number.

It is an amenable number.

450950630821 is a deficient number, since it is larger than the sum of its proper divisors (903709179).

450950630821 is an equidigital number, since it uses as much as digits as its factorization.

450950630821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903709178.

The product of its (nonzero) digits is 259200, while the sum is 43.

Adding to 450950630821 its reverse (128036059054), we get a palindrome (578986689875).

The spelling of 450950630821 in words is "four hundred fifty billion, nine hundred fifty million, six hundred thirty thousand, eight hundred twenty-one".