18504068245 has 16 divisors (see below), whose sum is σ = 23917066992. Its totient is φ = 13662190080.

The previous prime is 18504068207. The next prime is 18504068269. The reversal of 18504068245 is 54286040581.

It can be written as a sum of positive squares in 8 ways, for example, as 2868566481 + 15635501764 = 53559^2 + 125042^2 .

It is not a de Polignac number, because 18504068245 - 2¹¹ = 18504066197 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 416505 + ... + 458785.

It is an arithmetic number, because the mean of its divisors is an integer number (1494816687).

Almost surely, 2^18504068245 is an apocalyptic number.

It is an amenable number.

18504068245 is a deficient number, since it is larger than the sum of its proper divisors (5412998747).

18504068245 is a wasteful number, since it uses less digits than its factorization.

18504068245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49032.

The product of its (nonzero) digits is 307200, while the sum is 43.

The spelling of 18504068245 in words is "eighteen billion, five hundred four million, sixty-eight thousand, two hundred forty-five".