18022594613 has 4 divisors (see below), whose sum is σ = 18027690720. Its totient is φ = 18017498508.

The previous prime is 18022594559. The next prime is 18022594627. The reversal of 18022594613 is 31649522081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18022594613 - 2⁶ = 18022594549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18022594663) 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, 2542745 + ... + 2549822.

It is an arithmetic number, because the mean of its divisors is an integer number (4506922680).

Almost surely, 2^18022594613 is an apocalyptic number.

It is an amenable number.

18022594613 is a deficient number, since it is larger than the sum of its proper divisors (5096107).

18022594613 is an equidigital number, since it uses as much as digits as its factorization.

18022594613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096106.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 18022594613 in words is "eighteen billion, twenty-two million, five hundred ninety-four thousand, six hundred thirteen".