18002727393 has 32 divisors (see below), whose sum is σ = 27673067520. Its totient is φ = 10197290880.

The previous prime is 18002727367. The next prime is 18002727401. The reversal of 18002727393 is 39372720081.

It is not a de Polignac number, because 18002727393 - 2⁵ = 18002727361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18002727293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4080973 + ... + 4085381.

It is an arithmetic number, because the mean of its divisors is an integer number (864783360).

Almost surely, 2^18002727393 is an apocalyptic number.

It is an amenable number.

18002727393 is a deficient number, since it is larger than the sum of its proper divisors (9670340127).

18002727393 is a wasteful number, since it uses less digits than its factorization.

18002727393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6077.

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 18002727393 in words is "eighteen billion, two million, seven hundred twenty-seven thousand, three hundred ninety-three".