18234660911 has 2 divisors, whose sum is σ = 18234660912. Its totient is φ = 18234660910.

The previous prime is 18234660881. The next prime is 18234660979. The reversal of 18234660911 is 11906643281.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18234660911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18234660211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9117330455 + 9117330456.

It is an arithmetic number, because the mean of its divisors is an integer number (9117330456).

Almost surely, 2^18234660911 is an apocalyptic number.

18234660911 is a deficient number, since it is larger than the sum of its proper divisors (1).

18234660911 is an equidigital number, since it uses as much as digits as its factorization.

18234660911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 18234660911 in words is "eighteen billion, two hundred thirty-four million, six hundred sixty thousand, nine hundred eleven".