800842663144453 has 2 divisors, whose sum is σ = 800842663144454. Its totient is φ = 800842663144452.

The previous prime is 800842663144393. The next prime is 800842663144481. The reversal of 800842663144453 is 354441366248008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 432499320237924 + 368343342906529 = 20796618^2 + 19192273^2 .

It is a cyclic number.

It is not a de Polignac number, because 800842663144453 - 2²⁵ = 800842629590021 is a prime.

It is a super-2 number, since 2×800842663144453² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800842663144483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400421331572226 + 400421331572227.

It is an arithmetic number, because the mean of its divisors is an integer number (400421331572227).

Almost surely, 2^{800842663144453} is an apocalyptic number.

It is an amenable number.

800842663144453 is a deficient number, since it is larger than the sum of its proper divisors (1).

800842663144453 is an equidigital number, since it uses as much as digits as its factorization.

800842663144453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53084160, while the sum is 58.

The spelling of 800842663144453 in words is "eight hundred trillion, eight hundred forty-two billion, six hundred sixty-three million, one hundred forty-four thousand, four hundred fifty-three".