200000199994817 has 2 divisors, whose sum is σ = 200000199994818. Its totient is φ = 200000199994816.

The previous prime is 200000199994811. The next prime is 200000199994873. The reversal of 200000199994817 is 718499991000002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164924951820721 + 35075248174096 = 12842311^2 + 5922436^2 .

It is a cyclic number.

It is not a de Polignac number, because 200000199994817 - 2⁸ = 200000199994561 is a prime.

It is not a weakly prime, because it can be changed into another prime (200000199994811) 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, 100000099997408 + 100000099997409.

It is an arithmetic number, because the mean of its divisors is an integer number (100000099997409).

Almost surely, 2^{200000199994817} is an apocalyptic number.

It is an amenable number.

200000199994817 is a deficient number, since it is larger than the sum of its proper divisors (1).

200000199994817 is an equidigital number, since it uses as much as digits as its factorization.

200000199994817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 59.

The spelling of 200000199994817 in words is "two hundred trillion, one hundred ninety-nine million, nine hundred ninety-four thousand, eight hundred seventeen".