6632841991 has 2 divisors, whose sum is σ = 6632841992. Its totient is φ = 6632841990.

The previous prime is 6632841967. The next prime is 6632842049. The reversal of 6632841991 is 1991482366.

It is a happy number.

6632841991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6632841991 - 2⁷ = 6632841863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6632841491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3316420995 + 3316420996.

It is an arithmetic number, because the mean of its divisors is an integer number (3316420996).

Almost surely, 2^6632841991 is an apocalyptic number.

6632841991 is a deficient number, since it is larger than the sum of its proper divisors (1).

6632841991 is an equidigital number, since it uses as much as digits as its factorization.

6632841991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 49.

The square root of 6632841991 is about 81442.2617011586. The cubic root of 6632841991 is about 1878.8836354525.

The spelling of 6632841991 in words is "six billion, six hundred thirty-two million, eight hundred forty-one thousand, nine hundred ninety-one".