453991168529 has 2 divisors, whose sum is σ = 453991168530. Its totient is φ = 453991168528.

The previous prime is 453991168523. The next prime is 453991168531. The reversal of 453991168529 is 925861199354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256464254929 + 197526913600 = 506423^2 + 444440^2 .

It is a cyclic number.

It is not a de Polignac number, because 453991168529 - 2¹⁶ = 453991102993 is a prime.

It is a super-2 number, since 2×453991168529² (a number of 24 digits) contains 22 as substring.

Together with 453991168531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (453991168523) 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, 226995584264 + 226995584265.

It is an arithmetic number, because the mean of its divisors is an integer number (226995584265).

Almost surely, 2^453991168529 is an apocalyptic number.

It is an amenable number.

453991168529 is a deficient number, since it is larger than the sum of its proper divisors (1).

453991168529 is an equidigital number, since it uses as much as digits as its factorization.

453991168529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20995200, while the sum is 62.

The spelling of 453991168529 in words is "four hundred fifty-three billion, nine hundred ninety-one million, one hundred sixty-eight thousand, five hundred twenty-nine".