206679976903 has 2 divisors, whose sum is σ = 206679976904. Its totient is φ = 206679976902.

The previous prime is 206679976891. The next prime is 206679976939. The reversal of 206679976903 is 309679976602.

206679976903 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206679976903 is a prime.

It is a super-2 number, since 2×206679976903² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206679976003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103339988451 + 103339988452.

It is an arithmetic number, because the mean of its divisors is an integer number (103339988452).

Almost surely, 2^206679976903 is an apocalyptic number.

206679976903 is a deficient number, since it is larger than the sum of its proper divisors (1).

206679976903 is an equidigital number, since it uses as much as digits as its factorization.

206679976903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46294416, while the sum is 64.

The spelling of 206679976903 in words is "two hundred six billion, six hundred seventy-nine million, nine hundred seventy-six thousand, nine hundred three".