18504285328 has 10 divisors (see below), whose sum is σ = 35852052854. Its totient is φ = 9252142656.

The previous prime is 18504285323. The next prime is 18504285329. The reversal of 18504285328 is 82358240581.

It can be written as a sum of positive squares in only one way, i.e., 14890832784 + 3613452544 = 122028^2 + 60112^2 .

It is not an unprimeable number, because it can be changed into a prime (18504285323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578258901 + ... + 578258932.

Almost surely, 2^18504285328 is an apocalyptic number.

It is an amenable number.

18504285328 is a deficient number, since it is larger than the sum of its proper divisors (17347767526).

18504285328 is a wasteful number, since it uses less digits than its factorization.

18504285328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156517841 (or 1156517835 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 46.

The spelling of 18504285328 in words is "eighteen billion, five hundred four million, two hundred eighty-five thousand, three hundred twenty-eight".