453991169447 has 2 divisors, whose sum is σ = 453991169448. Its totient is φ = 453991169446.

The previous prime is 453991169369. The next prime is 453991169531. The reversal of 453991169447 is 744961199354.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 453991169447 - 2¹⁸ = 453990907303 is a prime.

It is a super-2 number, since 2×453991169447² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 453991169447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (453991165447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226995584723 + 226995584724.

It is an arithmetic number, because the mean of its divisors is an integer number (226995584724).

Almost surely, 2^453991169447 is an apocalyptic number.

453991169447 is a deficient number, since it is larger than the sum of its proper divisors (1).

453991169447 is an equidigital number, since it uses as much as digits as its factorization.

453991169447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 62.

The spelling of 453991169447 in words is "four hundred fifty-three billion, nine hundred ninety-one million, one hundred sixty-nine thousand, four hundred forty-seven".