18073108597 has 4 divisors (see below), whose sum is σ = 18414110700. Its totient is φ = 17732106496.

The previous prime is 18073108577. The next prime is 18073108601. The reversal of 18073108597 is 79580137081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79580137081 = 137 ⋅580876913.

It can be written as a sum of positive squares in 2 ways, for example, as 14429054641 + 3644053956 = 120121^2 + 60366^2 .

It is a cyclic number.

It is not a de Polignac number, because 18073108597 - 2¹⁵ = 18073075829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18073108597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18073108577) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 170500972 + ... + 170501077.

It is an arithmetic number, because the mean of its divisors is an integer number (4603527675).

Almost surely, 2^18073108597 is an apocalyptic number.

It is an amenable number.

18073108597 is a deficient number, since it is larger than the sum of its proper divisors (341002103).

18073108597 is an equidigital number, since it uses as much as digits as its factorization.

18073108597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341002102.

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 18073108597 in words is "eighteen billion, seventy-three million, one hundred eight thousand, five hundred ninety-seven".