450549572921 has 8 divisors (see below), whose sum is σ = 531523920384. Its totient is φ = 373727756160.

The previous prime is 450549572909. The next prime is 450549572939. The reversal of 450549572921 is 129275945054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 450549572921 - 2⁶ = 450549572857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450549572621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038132440 + ... + 1038132873.

It is an arithmetic number, because the mean of its divisors is an integer number (66440490048).

Almost surely, 2^450549572921 is an apocalyptic number.

It is an amenable number.

450549572921 is a deficient number, since it is larger than the sum of its proper divisors (80974347463).

450549572921 is a wasteful number, since it uses less digits than its factorization.

450549572921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076265351.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 450549572921 in words is "four hundred fifty billion, five hundred forty-nine million, five hundred seventy-two thousand, nine hundred twenty-one".