204450082489 has 2 divisors, whose sum is σ = 204450082490. Its totient is φ = 204450082488.

The previous prime is 204450082439. The next prime is 204450082511. The reversal of 204450082489 is 984280054402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169915435264 + 34534647225 = 412208^2 + 185835^2 .

It is a cyclic number.

It is not a de Polignac number, because 204450082489 - 2¹⁷ = 204449951417 is a prime.

It is not a weakly prime, because it can be changed into another prime (204450082439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102225041244 + 102225041245.

It is an arithmetic number, because the mean of its divisors is an integer number (102225041245).

Almost surely, 2^204450082489 is an apocalyptic number.

It is an amenable number.

204450082489 is a deficient number, since it is larger than the sum of its proper divisors (1).

204450082489 is an equidigital number, since it uses as much as digits as its factorization.

204450082489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 204450082489 in words is "two hundred four billion, four hundred fifty million, eighty-two thousand, four hundred eighty-nine".