450864490469 has 2 divisors, whose sum is σ = 450864490470. Its totient is φ = 450864490468.

The previous prime is 450864490457. The next prime is 450864490493. The reversal of 450864490469 is 964094468054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229081890625 + 221782599844 = 478625^2 + 470938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450864490469 is a prime.

It is a super-2 number, since 2×450864490469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450864490409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225432245234 + 225432245235.

It is an arithmetic number, because the mean of its divisors is an integer number (225432245235).

Almost surely, 2^450864490469 is an apocalyptic number.

It is an amenable number.

450864490469 is a deficient number, since it is larger than the sum of its proper divisors (1).

450864490469 is an equidigital number, since it uses as much as digits as its factorization.

450864490469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29859840, while the sum is 59.

The spelling of 450864490469 in words is "four hundred fifty billion, eight hundred sixty-four million, four hundred ninety thousand, four hundred sixty-nine".