18068668548 has 48 divisors (see below), whose sum is σ = 48262631424. Its totient is φ = 5153957280.

The previous prime is 18068668537. The next prime is 18068668549. The reversal of 18068668548 is 84586686081.

It is a junction number, because it is equal to n+sod(n) for n = 18068668491 and 18068668500.

It is not an unprimeable number, because it can be changed into a prime (18068668549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126198 + ... + 228173.

It is an arithmetic number, because the mean of its divisors is an integer number (1005471488).

Almost surely, 2^18068668548 is an apocalyptic number.

It is an amenable number.

18068668548 is an abundant number, since it is smaller than the sum of its proper divisors (30193962876).

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

18068668548 is a wasteful number, since it uses less digits than its factorization.

18068668548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354992 (or 354990 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 60.

The spelling of 18068668548 in words is "eighteen billion, sixty-eight million, six hundred sixty-eight thousand, five hundred forty-eight".