6331534002991 has 2 divisors, whose sum is σ = 6331534002992. Its totient is φ = 6331534002990.

The previous prime is 6331534002971. The next prime is 6331534003027. The reversal of 6331534002991 is 1992004351336.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6331534002991 - 2¹⁷ = 6331533871919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6331534002961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3165767001495 + 3165767001496.

It is an arithmetic number, because the mean of its divisors is an integer number (3165767001496).

Almost surely, 2^{6331534002991} is an apocalyptic number.

6331534002991 is a deficient number, since it is larger than the sum of its proper divisors (1).

6331534002991 is an equidigital number, since it uses as much as digits as its factorization.

6331534002991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 46.

The spelling of 6331534002991 in words is "six trillion, three hundred thirty-one billion, five hundred thirty-four million, two thousand, nine hundred ninety-one".