18013126204 has 24 divisors (see below), whose sum is σ = 32077167920. Its totient is φ = 8849558016.

The previous prime is 18013126199. The next prime is 18013126217. The reversal of 18013126204 is 40262131081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113067 + ... + 220930.

Almost surely, 2^18013126204 is an apocalyptic number.

It is an amenable number.

18013126204 is a deficient number, since it is larger than the sum of its proper divisors (14064041716).

18013126204 is a wasteful number, since it uses less digits than its factorization.

18013126204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334237 (or 334235 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 18013126204 its reverse (40262131081), we get a palindrome (58275257285).

The spelling of 18013126204 in words is "eighteen billion, thirteen million, one hundred twenty-six thousand, two hundred four".