205385205379 has 2 divisors, whose sum is σ = 205385205380. Its totient is φ = 205385205378.

The previous prime is 205385205323. The next prime is 205385205451. The reversal of 205385205379 is 973502583502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205385205379 - 2⁷ = 205385205251 is a prime.

It is not a weakly prime, because it can be changed into another prime (205385206379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102692602689 + 102692602690.

It is an arithmetic number, because the mean of its divisors is an integer number (102692602690).

Almost surely, 2^205385205379 is an apocalyptic number.

205385205379 is a deficient number, since it is larger than the sum of its proper divisors (1).

205385205379 is an equidigital number, since it uses as much as digits as its factorization.

205385205379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 205385205379 in words is "two hundred five billion, three hundred eighty-five million, two hundred five thousand, three hundred seventy-nine".