18542484448 has 48 divisors (see below), whose sum is σ = 38115735840. Its totient is φ = 8862785536.

The previous prime is 18542484437. The next prime is 18542484469. The reversal of 18542484448 is 84448424581.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18542484395 and 18542484404.

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, 1383636 + ... + 1396972.

It is an arithmetic number, because the mean of its divisors is an integer number (794077830).

Almost surely, 2^18542484448 is an apocalyptic number.

It is an amenable number.

18542484448 is an abundant number, since it is smaller than the sum of its proper divisors (19573251392).

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

18542484448 is a wasteful number, since it uses less digits than its factorization.

18542484448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15259 (or 15251 counting only the distinct ones).

The product of its digits is 5242880, while the sum is 52.

The spelling of 18542484448 in words is "eighteen billion, five hundred forty-two million, four hundred eighty-four thousand, four hundred forty-eight".