451433442021377 has 2 divisors, whose sum is σ = 451433442021378. Its totient is φ = 451433442021376.

The previous prime is 451433442021343. The next prime is 451433442021403. The reversal of 451433442021377 is 773120244334154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451352404443136 + 81037578241 = 21245056^2 + 284671^2 .

It is a cyclic number.

It is not a de Polignac number, because 451433442021377 - 2³⁰ = 451432368279553 is a prime.

It is a super-2 number, since 2×451433442021377² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (451433442021307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225716721010688 + 225716721010689.

It is an arithmetic number, because the mean of its divisors is an integer number (225716721010689).

Almost surely, 2^{451433442021377} is an apocalyptic number.

It is an amenable number.

451433442021377 is a deficient number, since it is larger than the sum of its proper divisors (1).

451433442021377 is an equidigital number, since it uses as much as digits as its factorization.

451433442021377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6773760, while the sum is 50.

The spelling of 451433442021377 in words is "four hundred fifty-one trillion, four hundred thirty-three billion, four hundred forty-two million, twenty-one thousand, three hundred seventy-seven".