18541749748 has 12 divisors (see below), whose sum is σ = 32521978720. Its totient is φ = 9249755832.

The previous prime is 18541749673. The next prime is 18541749797. The reversal of 18541749748 is 84794714581.

It is a junction number, because it is equal to n+sod(n) for n = 18541749692 and 18541749701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5277786 + ... + 5281297.

Almost surely, 2^18541749748 is an apocalyptic number.

It is an amenable number.

18541749748 is a deficient number, since it is larger than the sum of its proper divisors (13980228972).

18541749748 is a wasteful number, since it uses less digits than its factorization.

18541749748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10559526 (or 10559524 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 58.

The spelling of 18541749748 in words is "eighteen billion, five hundred forty-one million, seven hundred forty-nine thousand, seven hundred forty-eight".