18642000328 has 32 divisors (see below), whose sum is σ = 42049627200. Its totient is φ = 7568932032.

The previous prime is 18642000323. The next prime is 18642000329. The reversal of 18642000328 is 82300024681.

It is a junction number, because it is equal to n+sod(n) for n = 18642000293 and 18642000302.

It is not an unprimeable number, because it can be changed into a prime (18642000323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8759275 + ... + 8761402.

It is an arithmetic number, because the mean of its divisors is an integer number (1314050850).

Almost surely, 2^18642000328 is an apocalyptic number.

It is an amenable number.

18642000328 is an abundant number, since it is smaller than the sum of its proper divisors (23407626872).

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

18642000328 is a wasteful number, since it uses less digits than its factorization.

18642000328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17520709 (or 17520705 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 18642000328 in words is "eighteen billion, six hundred forty-two million, three hundred twenty-eight", and thus it is an aban number.