205912326201839 has 2 divisors, whose sum is σ = 205912326201840. Its totient is φ = 205912326201838.

The previous prime is 205912326201691. The next prime is 205912326201917. The reversal of 205912326201839 is 938102623219502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205912326201839 - 2²⁸ = 205912057766383 is a prime.

It is a super-3 number, since 3×205912326201839³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205912326201139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102956163100919 + 102956163100920.

It is an arithmetic number, because the mean of its divisors is an integer number (102956163100920).

Almost surely, 2^{205912326201839} is an apocalyptic number.

205912326201839 is a deficient number, since it is larger than the sum of its proper divisors (1).

205912326201839 is an equidigital number, since it uses as much as digits as its factorization.

205912326201839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 205912326201839 in words is "two hundred five trillion, nine hundred twelve billion, three hundred twenty-six million, two hundred one thousand, eight hundred thirty-nine".