2580704909 has 2 divisors, whose sum is σ = 2580704910. Its totient is φ = 2580704908.

The previous prime is 2580704891. The next prime is 2580704921. The reversal of 2580704909 is 9094070852.

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., 1864339684 + 716365225 = 43178^2 + 26765^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580704909 - 2¹² = 2580700813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2580704909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2580709909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1290352454 + 1290352455.

It is an arithmetic number, because the mean of its divisors is an integer number (1290352455).

Almost surely, 2^2580704909 is an apocalyptic number.

It is an amenable number.

2580704909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2580704909 is an equidigital number, since it uses as much as digits as its factorization.

2580704909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 2580704909 is about 50800.6388640930. The cubic root of 2580704909 is about 1371.6588691184.

The spelling of 2580704909 in words is "two billion, five hundred eighty million, seven hundred four thousand, nine hundred nine".