18275248111 has 2 divisors, whose sum is σ = 18275248112. Its totient is φ = 18275248110.

The previous prime is 18275248109. The next prime is 18275248157. The reversal of 18275248111 is 11184257281.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18275248111 - 2¹ = 18275248109 is a prime.

Together with 18275248109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18275248811) 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, 9137624055 + 9137624056.

It is an arithmetic number, because the mean of its divisors is an integer number (9137624056).

Almost surely, 2^18275248111 is an apocalyptic number.

18275248111 is a deficient number, since it is larger than the sum of its proper divisors (1).

18275248111 is an equidigital number, since it uses as much as digits as its factorization.

18275248111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35840, while the sum is 40.

The spelling of 18275248111 in words is "eighteen billion, two hundred seventy-five million, two hundred forty-eight thousand, one hundred eleven".