18334212855 has 32 divisors (see below), whose sum is σ = 33601181184. Its totient is φ = 8362413696.

The previous prime is 18334212833. The next prime is 18334212863. The reversal of 18334212855 is 55821243381.

It is not a de Polignac number, because 18334212855 - 2⁸ = 18334212599 is a prime.

It is a super-2 number, since 2×18334212855² (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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150564 + ... + 243593.

It is an arithmetic number, because the mean of its divisors is an integer number (1050036912).

Almost surely, 2^18334212855 is an apocalyptic number.

18334212855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18334212855 is a deficient number, since it is larger than the sum of its proper divisors (15266968329).

18334212855 is a wasteful number, since it uses less digits than its factorization.

18334212855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394615.

The product of its digits is 230400, while the sum is 42.

The spelling of 18334212855 in words is "eighteen billion, three hundred thirty-four million, two hundred twelve thousand, eight hundred fifty-five".