6809346547687 has 2 divisors, whose sum is σ = 6809346547688. Its totient is φ = 6809346547686.

The previous prime is 6809346547609. The next prime is 6809346547723. The reversal of 6809346547687 is 7867456439086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6809346547687 - 2⁷ = 6809346547559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6809346547987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3404673273843 + 3404673273844.

It is an arithmetic number, because the mean of its divisors is an integer number (3404673273844).

Almost surely, 2^{6809346547687} is an apocalyptic number.

6809346547687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6809346547687 is an equidigital number, since it uses as much as digits as its factorization.

6809346547687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1463132160, while the sum is 73.

The spelling of 6809346547687 in words is "six trillion, eight hundred nine billion, three hundred forty-six million, five hundred forty-seven thousand, six hundred eighty-seven".