18028602384 has 80 divisors (see below), whose sum is σ = 50299197312. Its totient is φ = 5531480064.

The previous prime is 18028602379. The next prime is 18028602421. The reversal of 18028602384 is 48320682081.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179349 + ... + 261195.

Almost surely, 2^18028602384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18028602384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25149598656).

18028602384 is an abundant number, since it is smaller than the sum of its proper divisors (32270594928).

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

18028602384 is a wasteful number, since it uses less digits than its factorization.

18028602384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82224 (or 82218 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 18028602384 in words is "eighteen billion, twenty-eight million, six hundred two thousand, three hundred eighty-four".