27805946111 has 2 divisors, whose sum is σ = 27805946112. Its totient is φ = 27805946110.

The previous prime is 27805946101. The next prime is 27805946143. The reversal of 27805946111 is 11164950872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27805946111 - 2¹⁸ = 27805683967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27805946101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13902973055 + 13902973056.

It is an arithmetic number, because the mean of its divisors is an integer number (13902973056).

Almost surely, 2^27805946111 is an apocalyptic number.

27805946111 is a deficient number, since it is larger than the sum of its proper divisors (1).

27805946111 is an equidigital number, since it uses as much as digits as its factorization.

27805946111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 27805946111 in words is "twenty-seven billion, eight hundred five million, nine hundred forty-six thousand, one hundred eleven".