206323828429 has 2 divisors, whose sum is σ = 206323828430. Its totient is φ = 206323828428.

The previous prime is 206323828427. The next prime is 206323828441. The reversal of 206323828429 is 924828323602.

206323828429 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 can be written as a sum of positive squares in only one way, i.e., 205392052804 + 931775625 = 453202^2 + 30525^2 .

It is a cyclic number.

It is not a de Polignac number, because 206323828429 - 2¹ = 206323828427 is a prime.

Together with 206323828427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206323828427) 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, 103161914214 + 103161914215.

It is an arithmetic number, because the mean of its divisors is an integer number (103161914215).

Almost surely, 2^206323828429 is an apocalyptic number.

It is an amenable number.

206323828429 is a deficient number, since it is larger than the sum of its proper divisors (1).

206323828429 is an equidigital number, since it uses as much as digits as its factorization.

206323828429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 206323828429 in words is "two hundred six billion, three hundred twenty-three million, eight hundred twenty-eight thousand, four hundred twenty-nine".