18503458348 has 6 divisors (see below), whose sum is σ = 32381052116. Its totient is φ = 9251729172.

The previous prime is 18503458333. The next prime is 18503458357. The reversal of 18503458348 is 84385430581.

It is a happy number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2312932290 + ... + 2312932297.

Almost surely, 2^18503458348 is an apocalyptic number.

It is an amenable number.

18503458348 is a deficient number, since it is larger than the sum of its proper divisors (13877593768).

18503458348 is a wasteful number, since it uses less digits than its factorization.

18503458348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4625864591 (or 4625864589 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 49.

The spelling of 18503458348 in words is "eighteen billion, five hundred three million, four hundred fifty-eight thousand, three hundred forty-eight".