18138960848 has 40 divisors (see below), whose sum is σ = 35524714368. Its totient is φ = 8971489152.

The previous prime is 18138960823. The next prime is 18138960859. The reversal of 18138960848 is 84806983181.

It is a junction number, because it is equal to n+sod(n) for n = 18138960793 and 18138960802.

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, 1614386 + ... + 1625582.

Almost surely, 2^18138960848 is an apocalyptic number.

It is an amenable number.

18138960848 is a deficient number, since it is larger than the sum of its proper divisors (17385753520).

18138960848 is a wasteful number, since it uses less digits than its factorization.

18138960848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12291 (or 12285 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 56.

The spelling of 18138960848 in words is "eighteen billion, one hundred thirty-eight million, nine hundred sixty thousand, eight hundred forty-eight".