18600343227 has 20 divisors (see below), whose sum is σ = 29248105480. Its totient is φ = 11747584224.

The previous prime is 18600343211. The next prime is 18600343283. The reversal of 18600343227 is 72234300681.

It is a happy number.

18600343227 is a `hidden beast` number, since 1 + 8 + 600 + 3 + 43 + 2 + 2 + 7 = 666.

It is not a de Polignac number, because 18600343227 - 2⁴ = 18600343211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18600343191 and 18600343200.

It is not an unprimeable number, because it can be changed into a prime (18600343327) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 6041458 + ... + 6044535.

It is an arithmetic number, because the mean of its divisors is an integer number (1462405274).

Almost surely, 2^18600343227 is an apocalyptic number.

18600343227 is a deficient number, since it is larger than the sum of its proper divisors (10647762253).

18600343227 is a wasteful number, since it uses less digits than its factorization.

18600343227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12086024 (or 12086015 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 18600343227 in words is "eighteen billion, six hundred million, three hundred forty-three thousand, two hundred twenty-seven".