18232871842 has 8 divisors (see below), whose sum is σ = 27492498432. Its totient is φ = 9068705700.

The previous prime is 18232871837. The next prime is 18232871843. The reversal of 18232871842 is 24817823281.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 18232871792 and 18232871801.

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 3 ways as a sum of consecutive naturals, for example, 23864634 + ... + 23865397.

It is an arithmetic number, because the mean of its divisors is an integer number (3436562304).

Almost surely, 2^18232871842 is an apocalyptic number.

18232871842 is a deficient number, since it is larger than the sum of its proper divisors (9259626590).

18232871842 is a wasteful number, since it uses less digits than its factorization.

18232871842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47730224.

The product of its digits is 344064, while the sum is 46.

The spelling of 18232871842 in words is "eighteen billion, two hundred thirty-two million, eight hundred seventy-one thousand, eight hundred forty-two".