6748684517 has 2 divisors, whose sum is σ = 6748684518. Its totient is φ = 6748684516.

The previous prime is 6748684507. The next prime is 6748684567. The reversal of 6748684517 is 7154868476.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6745172641 + 3511876 = 82129^2 + 1874^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6748684517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6748684507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3374342258 + 3374342259.

It is an arithmetic number, because the mean of its divisors is an integer number (3374342259).

Almost surely, 2^6748684517 is an apocalyptic number.

It is an amenable number.

6748684517 is a deficient number, since it is larger than the sum of its proper divisors (1).

6748684517 is an equidigital number, since it uses as much as digits as its factorization.

6748684517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9031680, while the sum is 56.

The square root of 6748684517 is about 82150.3774610927. The cubic root of 6748684517 is about 1889.7587961458.

The spelling of 6748684517 in words is "six billion, seven hundred forty-eight million, six hundred eighty-four thousand, five hundred seventeen".