800342702281 has 2 divisors, whose sum is σ = 800342702282. Its totient is φ = 800342702280.

The previous prime is 800342702231. The next prime is 800342702297. The reversal of 800342702281 is 182207243008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 757624013056 + 42718689225 = 870416^2 + 206685^2 .

It is a cyclic number.

It is not a de Polignac number, because 800342702281 - 2¹³ = 800342694089 is a prime.

It is a super-2 number, since 2×800342702281² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 800342702281.

It is not a weakly prime, because it can be changed into another prime (800342702231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400171351140 + 400171351141.

It is an arithmetic number, because the mean of its divisors is an integer number (400171351141).

Almost surely, 2^800342702281 is an apocalyptic number.

It is an amenable number.

800342702281 is a deficient number, since it is larger than the sum of its proper divisors (1).

800342702281 is an equidigital number, since it uses as much as digits as its factorization.

800342702281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 37.

Adding to 800342702281 its reverse (182207243008), we get a palindrome (982549945289).

The spelling of 800342702281 in words is "eight hundred billion, three hundred forty-two million, seven hundred two thousand, two hundred eighty-one".