206192456389 has 2 divisors, whose sum is σ = 206192456390. Its totient is φ = 206192456388.

The previous prime is 206192456359. The next prime is 206192456401. The reversal of 206192456389 is 983654291602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188620833025 + 17571623364 = 434305^2 + 132558^2 .

It is a cyclic number.

It is not a de Polignac number, because 206192456389 - 2⁹ = 206192455877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206192456359) 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, 103096228194 + 103096228195.

It is an arithmetic number, because the mean of its divisors is an integer number (103096228195).

Almost surely, 2^206192456389 is an apocalyptic number.

It is an amenable number.

206192456389 is a deficient number, since it is larger than the sum of its proper divisors (1).

206192456389 is an equidigital number, since it uses as much as digits as its factorization.

206192456389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 206192456389 in words is "two hundred six billion, one hundred ninety-two million, four hundred fifty-six thousand, three hundred eighty-nine".