205944652279 has 2 divisors, whose sum is σ = 205944652280. Its totient is φ = 205944652278.

The previous prime is 205944652261. The next prime is 205944652349. The reversal of 205944652279 is 972256449502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205944652279 - 2²⁷ = 205810434551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205944652079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102972326139 + 102972326140.

It is an arithmetic number, because the mean of its divisors is an integer number (102972326140).

Almost surely, 2^205944652279 is an apocalyptic number.

205944652279 is a deficient number, since it is larger than the sum of its proper divisors (1).

205944652279 is an equidigital number, since it uses as much as digits as its factorization.

205944652279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 205944652279 in words is "two hundred five billion, nine hundred forty-four million, six hundred fifty-two thousand, two hundred seventy-nine".