450864490291 has 4 divisors (see below), whose sum is σ = 451067493184. Its totient is φ = 450661487400.

The previous prime is 450864490277. The next prime is 450864490331. The reversal of 450864490291 is 192094468054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450864490291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450864490891) 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, 101498115 + ... + 101502556.

It is an arithmetic number, because the mean of its divisors is an integer number (112766873296).

Almost surely, 2^450864490291 is an apocalyptic number.

450864490291 is a deficient number, since it is larger than the sum of its proper divisors (203002893).

450864490291 is a wasteful number, since it uses less digits than its factorization.

450864490291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203002892.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 450864490291 in words is "four hundred fifty billion, eight hundred sixty-four million, four hundred ninety thousand, two hundred ninety-one".