6533546491 has 2 divisors, whose sum is σ = 6533546492. Its totient is φ = 6533546490.

The previous prime is 6533546477. The next prime is 6533546519. The reversal of 6533546491 is 1946453356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6533546491 - 2⁷ = 6533546363 is a prime.

It is not a weakly prime, because it can be changed into another prime (6533541491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3266773245 + 3266773246.

It is an arithmetic number, because the mean of its divisors is an integer number (3266773246).

Almost surely, 2^6533546491 is an apocalyptic number.

6533546491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6533546491 is an equidigital number, since it uses as much as digits as its factorization.

6533546491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 46.

The square root of 6533546491 is about 80830.3562468953. The cubic root of 6533546491 is about 1869.4606517418.

The spelling of 6533546491 in words is "six billion, five hundred thirty-three million, five hundred forty-six thousand, four hundred ninety-one".