18805896211 has 2 divisors, whose sum is σ = 18805896212. Its totient is φ = 18805896210.

The previous prime is 18805896143. The next prime is 18805896257. The reversal of 18805896211 is 11269850881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18805896211 - 2⁹ = 18805895699 is a prime.

It is not a weakly prime, because it can be changed into another prime (18805996211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9402948105 + 9402948106.

It is an arithmetic number, because the mean of its divisors is an integer number (9402948106).

Almost surely, 2^18805896211 is an apocalyptic number.

18805896211 is a deficient number, since it is larger than the sum of its proper divisors (1).

18805896211 is an equidigital number, since it uses as much as digits as its factorization.

18805896211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 49.

The spelling of 18805896211 in words is "eighteen billion, eight hundred five million, eight hundred ninety-six thousand, two hundred eleven".