18334212856 has 32 divisors (see below), whose sum is σ = 34907708880. Its totient is φ = 9025632000.

The previous prime is 18334212833. The next prime is 18334212863. The reversal of 18334212856 is 65821243381.

It is a super-2 number, since 2×18334212856² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182756 + ... + 1198156.

Almost surely, 2^18334212856 is an apocalyptic number.

It is an amenable number.

18334212856 is a deficient number, since it is larger than the sum of its proper divisors (16573496024).

18334212856 is a wasteful number, since it uses less digits than its factorization.

18334212856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17695 (or 17691 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The spelling of 18334212856 in words is "eighteen billion, three hundred thirty-four million, two hundred twelve thousand, eight hundred fifty-six".