206743053773 has 2 divisors, whose sum is σ = 206743053774. Its totient is φ = 206743053772.

The previous prime is 206743053757. The next prime is 206743053793. The reversal of 206743053773 is 377350347602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205026028804 + 1717024969 = 452798^2 + 41437^2 .

It is a cyclic number.

It is not a de Polignac number, because 206743053773 - 2⁴ = 206743053757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206743053793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103371526886 + 103371526887.

It is an arithmetic number, because the mean of its divisors is an integer number (103371526887).

Almost surely, 2^206743053773 is an apocalyptic number.

It is an amenable number.

206743053773 is a deficient number, since it is larger than the sum of its proper divisors (1).

206743053773 is an equidigital number, since it uses as much as digits as its factorization.

206743053773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2222640, while the sum is 47.

The spelling of 206743053773 in words is "two hundred six billion, seven hundred forty-three million, fifty-three thousand, seven hundred seventy-three".