18002727394 has 8 divisors (see below), whose sum is σ = 28178182080. Its totient is φ = 8610000036.

The previous prime is 18002727367. The next prime is 18002727401. The reversal of 18002727394 is 49372720081.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18002727394.

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, 195681774 + ... + 195681865.

It is an arithmetic number, because the mean of its divisors is an integer number (3522272760).

Almost surely, 2^18002727394 is an apocalyptic number.

18002727394 is a deficient number, since it is larger than the sum of its proper divisors (10175454686).

18002727394 is a wasteful number, since it uses less digits than its factorization.

18002727394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391363664.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 18002727394 in words is "eighteen billion, two million, seven hundred twenty-seven thousand, three hundred ninety-four".