9999995539 has 2 divisors, whose sum is σ = 9999995540. Its totient is φ = 9999995538.

The previous prime is 9999995503. The next prime is 9999995549. The reversal of 9999995539 is 9355999999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9999995539 - 2²¹ = 9997898387 is a prime.

It is not a weakly prime, because it can be changed into another prime (9999995549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999997769 + 4999997770.

It is an arithmetic number, because the mean of its divisors is an integer number (4999997770).

Almost surely, 2^9999995539 is an apocalyptic number.

9999995539 is a deficient number, since it is larger than the sum of its proper divisors (1).

9999995539 is an equidigital number, since it uses as much as digits as its factorization.

9999995539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 358722675, while the sum is 76.

The square root of 9999995539 is about 99999.9776949975. The cubic root of 9999995539 is about 2154.4343696674.

The spelling of 9999995539 in words is "nine billion, nine hundred ninety-nine million, nine hundred ninety-five thousand, five hundred thirty-nine".