204284275518413 has 2 divisors, whose sum is σ = 204284275518414. Its totient is φ = 204284275518412.

The previous prime is 204284275518377. The next prime is 204284275518419. The reversal of 204284275518413 is 314815572482402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182496917576164 + 21787357942249 = 13509142^2 + 4667693^2 .

It is a cyclic number.

It is not a de Polignac number, because 204284275518413 - 2¹² = 204284275514317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204284275518419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102142137759206 + 102142137759207.

It is an arithmetic number, because the mean of its divisors is an integer number (102142137759207).

Almost surely, 2^{204284275518413} is an apocalyptic number.

It is an amenable number.

204284275518413 is a deficient number, since it is larger than the sum of its proper divisors (1).

204284275518413 is an equidigital number, since it uses as much as digits as its factorization.

204284275518413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17203200, while the sum is 56.

The spelling of 204284275518413 in words is "two hundred four trillion, two hundred eighty-four billion, two hundred seventy-five million, five hundred eighteen thousand, four hundred thirteen".