18603009028 has 12 divisors (see below), whose sum is σ = 32556837852. Its totient is φ = 9301055360.

The previous prime is 18603009013. The next prime is 18603009049. The reversal of 18603009028 is 82090030681.

It can be written as a sum of positive squares in 2 ways, for example, as 6804270144 + 11798738884 = 82488^2 + 108622^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8425 + ... + 193072.

It is an arithmetic number, because the mean of its divisors is an integer number (2713069821).

Almost surely, 2^18603009028 is an apocalyptic number.

It is an amenable number.

18603009028 is a deficient number, since it is larger than the sum of its proper divisors (13953828824).

18603009028 is a wasteful number, since it uses less digits than its factorization.

18603009028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224582 (or 224580 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 18603009028 in words is "eighteen billion, six hundred three million, nine thousand, twenty-eight".