6881132563 has 2 divisors, whose sum is σ = 6881132564. Its totient is φ = 6881132562.

The previous prime is 6881132539. The next prime is 6881132581. The reversal of 6881132563 is 3652311886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6881132563 - 2⁹ = 6881132051 is a prime.

It is not a weakly prime, because it can be changed into another prime (6881130563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440566281 + 3440566282.

It is an arithmetic number, because the mean of its divisors is an integer number (3440566282).

Almost surely, 2^6881132563 is an apocalyptic number.

6881132563 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881132563 is an equidigital number, since it uses as much as digits as its factorization.

6881132563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 6881132563 is about 82952.5922620867. The cubic root of 6881132563 is about 1902.0414404305.

The spelling of 6881132563 in words is "six billion, eight hundred eighty-one million, one hundred thirty-two thousand, five hundred sixty-three".