34163643991 has 2 divisors, whose sum is σ = 34163643992. Its totient is φ = 34163643990.

The previous prime is 34163643971. The next prime is 34163644033. The reversal of 34163643991 is 19934636143.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34163643991 - 2³¹ = 32016160343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34163643971) 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, 17081821995 + 17081821996.

It is an arithmetic number, because the mean of its divisors is an integer number (17081821996).

Almost surely, 2^34163643991 is an apocalyptic number.

34163643991 is a deficient number, since it is larger than the sum of its proper divisors (1).

34163643991 is an equidigital number, since it uses as much as digits as its factorization.

34163643991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 49.

The spelling of 34163643991 in words is "thirty-four billion, one hundred sixty-three million, six hundred forty-three thousand, nine hundred ninety-one".