6897733016809 has 2 divisors, whose sum is σ = 6897733016810. Its totient is φ = 6897733016808.

The previous prime is 6897733016767. The next prime is 6897733016861. The reversal of 6897733016809 is 9086103377986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3951360766809 + 2946372250000 = 1987803^2 + 1716500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6897733016809 is a prime.

It is not a weakly prime, because it can be changed into another prime (6897733016899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3448866508404 + 3448866508405.

It is an arithmetic number, because the mean of its divisors is an integer number (3448866508405).

Almost surely, 2^{6897733016809} is an apocalyptic number.

It is an amenable number.

6897733016809 is a deficient number, since it is larger than the sum of its proper divisors (1).

6897733016809 is an equidigital number, since it uses as much as digits as its factorization.

6897733016809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82301184, while the sum is 67.

The spelling of 6897733016809 in words is "six trillion, eight hundred ninety-seven billion, seven hundred thirty-three million, sixteen thousand, eight hundred nine".