18232871841 has 12 divisors (see below), whose sum is σ = 27885568932. Its totient is φ = 11440233216.

The previous prime is 18232871837. The next prime is 18232871843. The reversal of 18232871841 is 14817823281.

18232871841 is a `hidden beast` number, since 182 + 328 + 71 + 84 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16306013025 + 1926858816 = 127695^2 + 43896^2 .

It is not a de Polignac number, because 18232871841 - 2² = 18232871837 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18232871843) 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 in 11 ways as a sum of consecutive naturals, for example, 59584396 + ... + 59584701.

It is an arithmetic number, because the mean of its divisors is an integer number (2323797411).

Almost surely, 2^18232871841 is an apocalyptic number.

It is an amenable number.

18232871841 is a deficient number, since it is larger than the sum of its proper divisors (9652697091).

18232871841 is a wasteful number, since it uses less digits than its factorization.

18232871841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119169120 (or 119169117 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The spelling of 18232871841 in words is "eighteen billion, two hundred thirty-two million, eight hundred seventy-one thousand, eight hundred forty-one".