18874068211 has 2 divisors, whose sum is σ = 18874068212. Its totient is φ = 18874068210.

The previous prime is 18874068149. The next prime is 18874068223. The reversal of 18874068211 is 11286047881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18874068211 - 2²¹ = 18871971059 is a prime.

It is not a weakly prime, because it can be changed into another prime (18874062211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9437034105 + 9437034106.

It is an arithmetic number, because the mean of its divisors is an integer number (9437034106).

Almost surely, 2^18874068211 is an apocalyptic number.

18874068211 is a deficient number, since it is larger than the sum of its proper divisors (1).

18874068211 is an equidigital number, since it uses as much as digits as its factorization.

18874068211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172032, while the sum is 46.

The spelling of 18874068211 in words is "eighteen billion, eight hundred seventy-four million, sixty-eight thousand, two hundred eleven".