18034108945 has 4 divisors (see below), whose sum is σ = 21640930740. Its totient is φ = 14427287152.

The previous prime is 18034108933. The next prime is 18034108973. The reversal of 18034108945 is 54980143081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4836924304 + 13197184641 = 69548^2 + 114879^2 .

It is a cyclic number.

It is not a de Polignac number, because 18034108945 - 2¹¹ = 18034106897 is a prime.

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, 1803410890 + ... + 1803410899.

It is an arithmetic number, because the mean of its divisors is an integer number (5410232685).

Almost surely, 2^18034108945 is an apocalyptic number.

It is an amenable number.

18034108945 is a deficient number, since it is larger than the sum of its proper divisors (3606821795).

18034108945 is an equidigital number, since it uses as much as digits as its factorization.

18034108945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606821794.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 18034108945 in words is "eighteen billion, thirty-four million, one hundred eight thousand, nine hundred forty-five".