206968623713 has 2 divisors, whose sum is σ = 206968623714. Its totient is φ = 206968623712.

The previous prime is 206968623703. The next prime is 206968623761. The reversal of 206968623713 is 317326869602.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206959485184 + 9138529 = 454928^2 + 3023^2 .

It is a cyclic number.

It is not a de Polignac number, because 206968623713 - 2⁸ = 206968623457 is a prime.

It is a super-3 number, since 3×206968623713³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (206968623703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103484311856 + 103484311857.

It is an arithmetic number, because the mean of its divisors is an integer number (103484311857).

Almost surely, 2^206968623713 is an apocalyptic number.

It is an amenable number.

206968623713 is a deficient number, since it is larger than the sum of its proper divisors (1).

206968623713 is an equidigital number, since it uses as much as digits as its factorization.

206968623713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 206968623713 in words is "two hundred six billion, nine hundred sixty-eight million, six hundred twenty-three thousand, seven hundred thirteen".