451454440372213 has 2 divisors, whose sum is σ = 451454440372214. Its totient is φ = 451454440372212.

The previous prime is 451454440372031. The next prime is 451454440372217. The reversal of 451454440372213 is 312273044454154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306756204004849 + 144698236367364 = 17514457^2 + 12029058^2 .

It is a cyclic number.

It is not a de Polignac number, because 451454440372213 - 2¹⁷ = 451454440241141 is a prime.

It is a super-2 number, since 2×451454440372213² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451454440372217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225727220186106 + 225727220186107.

It is an arithmetic number, because the mean of its divisors is an integer number (225727220186107).

Almost surely, 2^{451454440372213} is an apocalyptic number.

It is an amenable number.

451454440372213 is a deficient number, since it is larger than the sum of its proper divisors (1).

451454440372213 is an equidigital number, since it uses as much as digits as its factorization.

451454440372213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6451200, while the sum is 49.

The spelling of 451454440372213 in words is "four hundred fifty-one trillion, four hundred fifty-four billion, four hundred forty million, three hundred seventy-two thousand, two hundred thirteen".