450506633021 has 4 divisors (see below), whose sum is σ = 454053929472. Its totient is φ = 446959336572.

The previous prime is 450506633011. The next prime is 450506633029. The reversal of 450506633021 is 120336605054.

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 450506633021 - 2²² = 450502438717 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 (450506633029) 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, 1773648035 + ... + 1773648288.

It is an arithmetic number, because the mean of its divisors is an integer number (113513482368).

Almost surely, 2^450506633021 is an apocalyptic number.

It is an amenable number.

450506633021 is a deficient number, since it is larger than the sum of its proper divisors (3547296451).

450506633021 is a wasteful number, since it uses less digits than its factorization.

450506633021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547296450.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 450506633021 in words is "four hundred fifty billion, five hundred six million, six hundred thirty-three thousand, twenty-one".