206398869379 has 2 divisors, whose sum is σ = 206398869380. Its totient is φ = 206398869378.

The previous prime is 206398869323. The next prime is 206398869389. The reversal of 206398869379 is 973968893602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206398869379 - 2¹³ = 206398861187 is a prime.

It is not a weakly prime, because it can be changed into another prime (206398869389) 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, 103199434689 + 103199434690.

It is an arithmetic number, because the mean of its divisors is an integer number (103199434690).

Almost surely, 2^206398869379 is an apocalyptic number.

206398869379 is a deficient number, since it is larger than the sum of its proper divisors (1).

206398869379 is an equidigital number, since it uses as much as digits as its factorization.

206398869379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211631616, while the sum is 70.

The spelling of 206398869379 in words is "two hundred six billion, three hundred ninety-eight million, eight hundred sixty-nine thousand, three hundred seventy-nine".