18226851200018 has 8 divisors (see below), whose sum is σ = 27340366447548. Its totient is φ = 9113395717504.

The previous prime is 18226851200003. The next prime is 18226851200029. The reversal of 18226851200018 is 81000215862281.

It can be written as a sum of positive squares in 2 ways, for example, as 17450896340329 + 775954859689 = 4177427^2 + 880883^2 .

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

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, 14170871 + ... + 15403482.

Almost surely, 2^{18226851200018} is an apocalyptic number.

18226851200018 is a deficient number, since it is larger than the sum of its proper divisors (9113515247530).

18226851200018 is a wasteful number, since it uses less digits than its factorization.

18226851200018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29882508.

The product of its (nonzero) digits is 122880, while the sum is 44.

The spelling of 18226851200018 in words is "eighteen trillion, two hundred twenty-six billion, eight hundred fifty-one million, two hundred thousand, eighteen".