6853686547 has 2 divisors, whose sum is σ = 6853686548. Its totient is φ = 6853686546.

The previous prime is 6853686529. The next prime is 6853686557. The reversal of 6853686547 is 7456863586.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6853686547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6853686491 and 6853686500.

It is not a weakly prime, because it can be changed into another prime (6853686557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3426843273 + 3426843274.

It is an arithmetic number, because the mean of its divisors is an integer number (3426843274).

Almost surely, 2^6853686547 is an apocalyptic number.

6853686547 is a deficient number, since it is larger than the sum of its proper divisors (1).

6853686547 is an equidigital number, since it uses as much as digits as its factorization.

6853686547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29030400, while the sum is 58.

The square root of 6853686547 is about 82786.9950354523. The cubic root of 6853686547 is about 1899.5092497095.

The spelling of 6853686547 in words is "six billion, eight hundred fifty-three million, six hundred eighty-six thousand, five hundred forty-seven".