3205386138259 has 2 divisors, whose sum is σ = 3205386138260. Its totient is φ = 3205386138258.

The previous prime is 3205386138223. The next prime is 3205386138263. The reversal of 3205386138259 is 9528316835023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3205386138259 is a prime.

It is not a weakly prime, because it can be changed into another prime (3205386139259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602693069129 + 1602693069130.

It is an arithmetic number, because the mean of its divisors is an integer number (1602693069130).

Almost surely, 2^{3205386138259} is an apocalyptic number.

3205386138259 is a deficient number, since it is larger than the sum of its proper divisors (1).

3205386138259 is an equidigital number, since it uses as much as digits as its factorization.

3205386138259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 3205386138259 in words is "three trillion, two hundred five billion, three hundred eighty-six million, one hundred thirty-eight thousand, two hundred fifty-nine".