9009909539 has 2 divisors, whose sum is σ = 9009909540. Its totient is φ = 9009909538.

The previous prime is 9009909499. The next prime is 9009909551. The reversal of 9009909539 is 9359099009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9009909539 - 2¹⁶ = 9009844003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9009909599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4504954769 + 4504954770.

It is an arithmetic number, because the mean of its divisors is an integer number (4504954770).

Almost surely, 2^9009909539 is an apocalyptic number.

9009909539 is a deficient number, since it is larger than the sum of its proper divisors (1).

9009909539 is an equidigital number, since it uses as much as digits as its factorization.

9009909539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 885735, while the sum is 53.

The square root of 9009909539 is about 94920.5432927983. The cubic root of 9009909539 is about 2080.8469753160.

The spelling of 9009909539 in words is "nine billion, nine million, nine hundred nine thousand, five hundred thirty-nine".