6775775543 has 2 divisors, whose sum is σ = 6775775544. Its totient is φ = 6775775542.

The previous prime is 6775775533. The next prime is 6775775563. The reversal of 6775775543 is 3455775776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6775775543 - 2⁸ = 6775775287 is a prime.

It is a super-2 number, since 2×6775775543² = 91822268418233889698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6775775533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3387887771 + 3387887772.

It is an arithmetic number, because the mean of its divisors is an integer number (3387887772).

Almost surely, 2^6775775543 is an apocalyptic number.

6775775543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6775775543 is an equidigital number, since it uses as much as digits as its factorization.

6775775543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21609000, while the sum is 56.

The square root of 6775775543 is about 82315.0991191774. The cubic root of 6775775543 is about 1892.2840859642.

The spelling of 6775775543 in words is "six billion, seven hundred seventy-five million, seven hundred seventy-five thousand, five hundred forty-three".