18485457418 has 8 divisors (see below), whose sum is σ = 28622643840. Its totient is φ = 8944576140.

The previous prime is 18485457413. The next prime is 18485457421. The reversal of 18485457418 is 81475458481.

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

It is not an unprimeable number, because it can be changed into a prime (18485457413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149076208 + ... + 149076331.

It is an arithmetic number, because the mean of its divisors is an integer number (3577830480).

Almost surely, 2^18485457418 is an apocalyptic number.

18485457418 is a deficient number, since it is larger than the sum of its proper divisors (10137186422).

18485457418 is a wasteful number, since it uses less digits than its factorization.

18485457418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298152572.

The product of its digits is 5734400, while the sum is 55.

The spelling of 18485457418 in words is "eighteen billion, four hundred eighty-five million, four hundred fifty-seven thousand, four hundred eighteen".