18535385208 has 32 divisors (see below), whose sum is σ = 46343284560. Its totient is φ = 6177818880.

The previous prime is 18535385201. The next prime is 18535385227. The reversal of 18535385208 is 80258353581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18535385201) 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, 233266 + ... + 302462.

Almost surely, 2^18535385208 is an apocalyptic number.

It is an amenable number.

18535385208 is an abundant number, since it is smaller than the sum of its proper divisors (27807899352).

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

18535385208 is a wasteful number, since it uses less digits than its factorization.

18535385208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80367 (or 80363 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 48.

The spelling of 18535385208 in words is "eighteen billion, five hundred thirty-five million, three hundred eighty-five thousand, two hundred eight".