204043412418193 has 2 divisors, whose sum is σ = 204043412418194. Its totient is φ = 204043412418192.

The previous prime is 204043412418179. The next prime is 204043412418217. The reversal of 204043412418193 is 391814214340402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182761955026704 + 21281457391489 = 13518948^2 + 4613183^2 .

It is a cyclic number.

It is not a de Polignac number, because 204043412418193 - 2⁴⁵ = 168859040329361 is a prime.

It is not a weakly prime, because it can be changed into another prime (204043412418143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102021706209096 + 102021706209097.

It is an arithmetic number, because the mean of its divisors is an integer number (102021706209097).

Almost surely, 2^{204043412418193} is an apocalyptic number.

It is an amenable number.

204043412418193 is a deficient number, since it is larger than the sum of its proper divisors (1).

204043412418193 is an equidigital number, since it uses as much as digits as its factorization.

204043412418193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 46.

Adding to 204043412418193 its reverse (391814214340402), we get a palindrome (595857626758595).

The spelling of 204043412418193 in words is "two hundred four trillion, forty-three billion, four hundred twelve million, four hundred eighteen thousand, one hundred ninety-three".