18472335305 has 8 divisors (see below), whose sum is σ = 22215310152. Its totient is φ = 14745529728.

The previous prime is 18472335289. The next prime is 18472335313. The reversal of 18472335305 is 50353327481.

It can be written as a sum of positive squares in 4 ways, for example, as 10573391929 + 7898943376 = 102827^2 + 88876^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18472335305 - 2⁴ = 18472335289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4039802 + ... + 4044371.

It is an arithmetic number, because the mean of its divisors is an integer number (2776913769).

Almost surely, 2^18472335305 is an apocalyptic number.

It is an amenable number.

18472335305 is a deficient number, since it is larger than the sum of its proper divisors (3742974847).

18472335305 is an equidigital number, since it uses as much as digits as its factorization.

18472335305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8084635.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 18472335305 in words is "eighteen billion, four hundred seventy-two million, three hundred thirty-five thousand, three hundred five".