6893049846509 has 2 divisors, whose sum is σ = 6893049846510. Its totient is φ = 6893049846508.

The previous prime is 6893049846497. The next prime is 6893049846539. The reversal of 6893049846509 is 9056489403986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5740600362025 + 1152449484484 = 2395955^2 + 1073522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6893049846509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6893049846539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3446524923254 + 3446524923255.

It is an arithmetic number, because the mean of its divisors is an integer number (3446524923255).

Almost surely, 2^{6893049846509} is an apocalyptic number.

It is an amenable number.

6893049846509 is a deficient number, since it is larger than the sum of its proper divisors (1).

6893049846509 is an equidigital number, since it uses as much as digits as its factorization.

6893049846509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403107840, while the sum is 71.

The spelling of 6893049846509 in words is "six trillion, eight hundred ninety-three billion, forty-nine million, eight hundred forty-six thousand, five hundred nine".