6716807549 has 2 divisors, whose sum is σ = 6716807550. Its totient is φ = 6716807548.

The previous prime is 6716807527. The next prime is 6716807551. The reversal of 6716807549 is 9457086176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5823216100 + 893591449 = 76310^2 + 29893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6716807549 is a prime.

It is a Sophie Germain prime.

Together with 6716807551, it forms a pair of twin primes.

It is a Chen 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 6716807549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6716807509) 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, 3358403774 + 3358403775.

It is an arithmetic number, because the mean of its divisors is an integer number (3358403775).

Almost surely, 2^6716807549 is an apocalyptic number.

It is an amenable number.

6716807549 is a deficient number, since it is larger than the sum of its proper divisors (1).

6716807549 is an equidigital number, since it uses as much as digits as its factorization.

6716807549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 6716807549 is about 81956.1318572320. The cubic root of 6716807549 is about 1886.7787152915.

The spelling of 6716807549 in words is "six billion, seven hundred sixteen million, eight hundred seven thousand, five hundred forty-nine".