6853964543 has 2 divisors, whose sum is σ = 6853964544. Its totient is φ = 6853964542.

The previous prime is 6853964519. The next prime is 6853964549. The reversal of 6853964543 is 3454693586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6853964543 - 2⁶ = 6853964479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6853964549) 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, 3426982271 + 3426982272.

It is an arithmetic number, because the mean of its divisors is an integer number (3426982272).

Almost surely, 2^6853964543 is an apocalyptic number.

6853964543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6853964543 is an equidigital number, since it uses as much as digits as its factorization.

6853964543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 53.

The square root of 6853964543 is about 82788.6740019430. The cubic root of 6853964543 is about 1899.5349316949.

The spelling of 6853964543 in words is "six billion, eight hundred fifty-three million, nine hundred sixty-four thousand, five hundred forty-three".