18423126404 has 12 divisors (see below), whose sum is σ = 32242030800. Its totient is φ = 9211117608.

The previous prime is 18423126401. The next prime is 18423126413. The reversal of 18423126404 is 40462132481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18423126401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7634 + ... + 192105.

It is an arithmetic number, because the mean of its divisors is an integer number (2686835900).

Almost surely, 2^18423126404 is an apocalyptic number.

It is an amenable number.

18423126404 is a deficient number, since it is larger than the sum of its proper divisors (13818904396).

18423126404 is a wasteful number, since it uses less digits than its factorization.

18423126404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222802 (or 222800 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

Adding to 18423126404 its reverse (40462132481), we get a palindrome (58885258885).

The spelling of 18423126404 in words is "eighteen billion, four hundred twenty-three million, one hundred twenty-six thousand, four hundred four".