866900327801 has 2 divisors, whose sum is σ = 866900327802. Its totient is φ = 866900327800.

The previous prime is 866900327767. The next prime is 866900327819. The reversal of 866900327801 is 108723009668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 574527616576 + 292372711225 = 757976^2 + 540715^2 .

It is a cyclic number.

It is not a de Polignac number, because 866900327801 - 2³⁴ = 849720458617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 866900327801.

It is not a weakly prime, because it can be changed into another prime (866900327851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433450163900 + 433450163901.

It is an arithmetic number, because the mean of its divisors is an integer number (433450163901).

Almost surely, 2^866900327801 is an apocalyptic number.

It is an amenable number.

866900327801 is a deficient number, since it is larger than the sum of its proper divisors (1).

866900327801 is an equidigital number, since it uses as much as digits as its factorization.

866900327801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 866900327801 in words is "eight hundred sixty-six billion, nine hundred million, three hundred twenty-seven thousand, eight hundred one".