18052805618 has 8 divisors (see below), whose sum is σ = 27079785648. Its totient is φ = 9026210404.

The previous prime is 18052805599. The next prime is 18052805623. The reversal of 18052805618 is 81650825081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×18052805618³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106505 + ... + 217827.

It is an arithmetic number, because the mean of its divisors is an integer number (3384973206).

Almost surely, 2^18052805618 is an apocalyptic number.

18052805618 is a deficient number, since it is larger than the sum of its proper divisors (9026980030).

18052805618 is a wasteful number, since it uses less digits than its factorization.

18052805618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192408.

The product of its (nonzero) digits is 153600, while the sum is 44.

The spelling of 18052805618 in words is "eighteen billion, fifty-two million, eight hundred five thousand, six hundred eighteen".