454391816933 has 2 divisors, whose sum is σ = 454391816934. Its totient is φ = 454391816932.

The previous prime is 454391816909. The next prime is 454391816969. The reversal of 454391816933 is 339618193454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451929474049 + 2462342884 = 672257^2 + 49622^2 .

It is a cyclic number.

It is not a de Polignac number, because 454391816933 - 2¹⁸ = 454391554789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454391813933) 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, 227195908466 + 227195908467.

It is an arithmetic number, because the mean of its divisors is an integer number (227195908467).

Almost surely, 2^454391816933 is an apocalyptic number.

It is an amenable number.

454391816933 is a deficient number, since it is larger than the sum of its proper divisors (1).

454391816933 is an equidigital number, since it uses as much as digits as its factorization.

454391816933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 56.

The spelling of 454391816933 in words is "four hundred fifty-four billion, three hundred ninety-one million, eight hundred sixteen thousand, nine hundred thirty-three".