6634380889211 has 2 divisors, whose sum is σ = 6634380889212. Its totient is φ = 6634380889210.

The previous prime is 6634380889193. The next prime is 6634380889289. The reversal of 6634380889211 is 1129880834366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6634380889211 - 2¹⁸ = 6634380627067 is a prime.

It is not a weakly prime, because it can be changed into another prime (6634380889111) 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, 3317190444605 + 3317190444606.

It is an arithmetic number, because the mean of its divisors is an integer number (3317190444606).

Almost surely, 2^{6634380889211} is an apocalyptic number.

6634380889211 is a deficient number, since it is larger than the sum of its proper divisors (1).

6634380889211 is an equidigital number, since it uses as much as digits as its factorization.

6634380889211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11943936, while the sum is 59.

The spelling of 6634380889211 in words is "six trillion, six hundred thirty-four billion, three hundred eighty million, eight hundred eighty-nine thousand, two hundred eleven".