205348775029 has 2 divisors, whose sum is σ = 205348775030. Its totient is φ = 205348775028.

The previous prime is 205348774991. The next prime is 205348775077. The reversal of 205348775029 is 920577843502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204305808004 + 1042967025 = 452002^2 + 32295^2 .

It is a cyclic number.

It is not a de Polignac number, because 205348775029 - 2¹³ = 205348766837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205348775129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102674387514 + 102674387515.

It is an arithmetic number, because the mean of its divisors is an integer number (102674387515).

Almost surely, 2^205348775029 is an apocalyptic number.

It is an amenable number.

205348775029 is a deficient number, since it is larger than the sum of its proper divisors (1).

205348775029 is an equidigital number, since it uses as much as digits as its factorization.

205348775029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 205348775029 in words is "two hundred five billion, three hundred forty-eight million, seven hundred seventy-five thousand, twenty-nine".