5126311709 has 2 divisors, whose sum is σ = 5126311710. Its totient is φ = 5126311708.

The previous prime is 5126311703. The next prime is 5126311711. The reversal of 5126311709 is 9071136215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4978008025 + 148303684 = 70555^2 + 12178^2 .

It is a cyclic number.

It is not a de Polignac number, because 5126311709 - 2²⁰ = 5125263133 is a prime.

Together with 5126311711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5126311703) 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, 2563155854 + 2563155855.

It is an arithmetic number, because the mean of its divisors is an integer number (2563155855).

Almost surely, 2^5126311709 is an apocalyptic number.

It is an amenable number.

5126311709 is a deficient number, since it is larger than the sum of its proper divisors (1).

5126311709 is an equidigital number, since it uses as much as digits as its factorization.

5126311709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 5126311709 is about 71598.2661033073. The cubic root of 5126311709 is about 1724.2556989478.

The spelling of 5126311709 in words is "five billion, one hundred twenty-six million, three hundred eleven thousand, seven hundred nine".