18885033512 has 8 divisors (see below), whose sum is σ = 35409437850. Its totient is φ = 9442516752.

The previous prime is 18885033487. The next prime is 18885033521. The reversal of 18885033512 is 21533058881.

It can be written as a sum of positive squares in only one way, i.e., 16418321956 + 2466711556 = 128134^2 + 49666^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1180314587 + ... + 1180314602.

Almost surely, 2^18885033512 is an apocalyptic number.

It is an amenable number.

18885033512 is a deficient number, since it is larger than the sum of its proper divisors (16524404338).

18885033512 is a wasteful number, since it uses less digits than its factorization.

18885033512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360629195 (or 2360629191 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 18885033512 in words is "eighteen billion, eight hundred eighty-five million, thirty-three thousand, five hundred twelve".