450864490891 has 2 divisors, whose sum is σ = 450864490892. Its totient is φ = 450864490890.

The previous prime is 450864490889. The next prime is 450864490903. The reversal of 450864490891 is 198094468054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450864490891 - 2¹ = 450864490889 is a prime.

It is a super-3 number, since 3×450864490891³ (a number of 36 digits) contains 333 as substring.

Together with 450864490889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (450864490841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225432245445 + 225432245446.

It is an arithmetic number, because the mean of its divisors is an integer number (225432245446).

Almost surely, 2^450864490891 is an apocalyptic number.

450864490891 is a deficient number, since it is larger than the sum of its proper divisors (1).

450864490891 is an equidigital number, since it uses as much as digits as its factorization.

450864490891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9953280, while the sum is 58.

The spelling of 450864490891 in words is "four hundred fifty billion, eight hundred sixty-four million, four hundred ninety thousand, eight hundred ninety-one".