204579001049 has 2 divisors, whose sum is σ = 204579001050. Its totient is φ = 204579001048.

The previous prime is 204579000991. The next prime is 204579001057. The reversal of 204579001049 is 940100975402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202403711449 + 2175289600 = 449893^2 + 46640^2 .

It is a cyclic number.

It is not a de Polignac number, because 204579001049 - 2³⁶ = 135859524313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204579000997 and 204579001015.

It is not a weakly prime, because it can be changed into another prime (204579001069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102289500524 + 102289500525.

It is an arithmetic number, because the mean of its divisors is an integer number (102289500525).

Almost surely, 2^204579001049 is an apocalyptic number.

It is an amenable number.

204579001049 is a deficient number, since it is larger than the sum of its proper divisors (1).

204579001049 is an equidigital number, since it uses as much as digits as its factorization.

204579001049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 204579001049 in words is "two hundred four billion, five hundred seventy-nine million, one thousand, forty-nine".