6783313349 has 2 divisors, whose sum is σ = 6783313350. Its totient is φ = 6783313348.

The previous prime is 6783313337. The next prime is 6783313409. The reversal of 6783313349 is 9433133876.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4493020900 + 2290292449 = 67030^2 + 47857^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6783313349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6783313309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3391656674 + 3391656675.

It is an arithmetic number, because the mean of its divisors is an integer number (3391656675).

Almost surely, 2^6783313349 is an apocalyptic number.

It is an amenable number.

6783313349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6783313349 is an equidigital number, since it uses as much as digits as its factorization.

6783313349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 47.

The square root of 6783313349 is about 82360.8726823605. The cubic root of 6783313349 is about 1892.9855251938.

The spelling of 6783313349 in words is "six billion, seven hundred eighty-three million, three hundred thirteen thousand, three hundred forty-nine".