204952794469 has 2 divisors, whose sum is σ = 204952794470. Its totient is φ = 204952794468.

The previous prime is 204952794407. The next prime is 204952794481. The reversal of 204952794469 is 964497259402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204652188225 + 300606244 = 452385^2 + 17338^2 .

It is a cyclic number.

It is not a de Polignac number, because 204952794469 - 2⁷ = 204952794341 is a prime.

It is a super-2 number, since 2×204952794469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204950794469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102476397234 + 102476397235.

It is an arithmetic number, because the mean of its divisors is an integer number (102476397235).

Almost surely, 2^204952794469 is an apocalyptic number.

It is an amenable number.

204952794469 is a deficient number, since it is larger than the sum of its proper divisors (1).

204952794469 is an equidigital number, since it uses as much as digits as its factorization.

204952794469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 204952794469 in words is "two hundred four billion, nine hundred fifty-two million, seven hundred ninety-four thousand, four hundred sixty-nine".