451054180691797 has 2 divisors, whose sum is σ = 451054180691798. Its totient is φ = 451054180691796.

The previous prime is 451054180691789. The next prime is 451054180691953. The reversal of 451054180691797 is 797196081450154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448517468289361 + 2536712402436 = 21178231^2 + 1592706^2 .

It is a cyclic number.

It is not a de Polignac number, because 451054180691797 - 2³ = 451054180691789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (451054180691747) 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, 225527090345898 + 225527090345899.

It is an arithmetic number, because the mean of its divisors is an integer number (225527090345899).

Almost surely, 2^{451054180691797} is an apocalyptic number.

It is an amenable number.

451054180691797 is a deficient number, since it is larger than the sum of its proper divisors (1).

451054180691797 is an equidigital number, since it uses as much as digits as its factorization.

451054180691797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76204800, while the sum is 67.

The spelling of 451054180691797 in words is "four hundred fifty-one trillion, fifty-four billion, one hundred eighty million, six hundred ninety-one thousand, seven hundred ninety-seven".