18268503052 has 6 divisors (see below), whose sum is σ = 31969880348. Its totient is φ = 9134251524.

The previous prime is 18268503041. The next prime is 18268503067. The reversal of 18268503052 is 25030586281.

It is a junction number, because it is equal to n+sod(n) for n = 18268502996 and 18268503014.

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 as a sum of consecutive naturals, namely, 2283562878 + ... + 2283562885.

Almost surely, 2^18268503052 is an apocalyptic number.

It is an amenable number.

18268503052 is a deficient number, since it is larger than the sum of its proper divisors (13701377296).

18268503052 is a wasteful number, since it uses less digits than its factorization.

18268503052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4567125767 (or 4567125765 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 18268503052 in words is "eighteen billion, two hundred sixty-eight million, five hundred three thousand, fifty-two".