9671719249 has 2 divisors, whose sum is σ = 9671719250. Its totient is φ = 9671719248.

The previous prime is 9671719243. The next prime is 9671719289. The reversal of 9671719249 is 9429171769.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8475043600 + 1196675649 = 92060^2 + 34593^2 .

It is a cyclic number.

It is not a de Polignac number, because 9671719249 - 2³³ = 1081784657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9671719249.

It is not a weakly prime, because it can be changed into another prime (9671719243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4835859624 + 4835859625.

It is an arithmetic number, because the mean of its divisors is an integer number (4835859625).

Almost surely, 2^9671719249 is an apocalyptic number.

It is an amenable number.

9671719249 is a deficient number, since it is larger than the sum of its proper divisors (1).

9671719249 is an equidigital number, since it uses as much as digits as its factorization.

9671719249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1714608, while the sum is 55.

The square root of 9671719249 is about 98344.8994559454. The cubic root of 9671719249 is about 2130.5965875730.

The spelling of 9671719249 in words is "nine billion, six hundred seventy-one million, seven hundred nineteen thousand, two hundred forty-nine".