18142031604 has 24 divisors (see below), whose sum is σ = 42338033248. Its totient is φ = 6046397280.

The previous prime is 18142031603. The next prime is 18142031617. The reversal of 18142031604 is 40613024181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18142031603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36187 + ... + 193890.

Almost surely, 2^18142031604 is an apocalyptic number.

It is an amenable number.

18142031604 is an abundant number, since it is smaller than the sum of its proper divisors (24196001644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18142031604 is a wasteful number, since it uses less digits than its factorization.

18142031604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236655 (or 236653 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

Adding to 18142031604 its reverse (40613024181), we get a palindrome (58755055785).

The spelling of 18142031604 in words is "eighteen billion, one hundred forty-two million, thirty-one thousand, six hundred four".