451171816841 has 2 divisors, whose sum is σ = 451171816842. Its totient is φ = 451171816840.

The previous prime is 451171816813. The next prime is 451171816861. The reversal of 451171816841 is 148618171154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 408909091600 + 42262725241 = 639460^2 + 205579^2 .

It is a cyclic number.

It is not a de Polignac number, because 451171816841 - 2³⁰ = 450098075017 is a prime.

It is not a weakly prime, because it can be changed into another prime (451171816811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225585908420 + 225585908421.

It is an arithmetic number, because the mean of its divisors is an integer number (225585908421).

Almost surely, 2^451171816841 is an apocalyptic number.

It is an amenable number.

451171816841 is a deficient number, since it is larger than the sum of its proper divisors (1).

451171816841 is an equidigital number, since it uses as much as digits as its factorization.

451171816841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 47.

Adding to 451171816841 its reverse (148618171154), we get a palindrome (599789987995).

The spelling of 451171816841 in words is "four hundred fifty-one billion, one hundred seventy-one million, eight hundred sixteen thousand, eight hundred forty-one".