18386161711 has 2 divisors, whose sum is σ = 18386161712. Its totient is φ = 18386161710.

The previous prime is 18386161639. The next prime is 18386161777. The reversal of 18386161711 is 11716168381.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11716168381) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18386161711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18386161111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9193080855 + 9193080856.

It is an arithmetic number, because the mean of its divisors is an integer number (9193080856).

Almost surely, 2^18386161711 is an apocalyptic number.

18386161711 is a deficient number, since it is larger than the sum of its proper divisors (1).

18386161711 is an equidigital number, since it uses as much as digits as its factorization.

18386161711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 43.

The spelling of 18386161711 in words is "eighteen billion, three hundred eighty-six million, one hundred sixty-one thousand, seven hundred eleven".