18236074573 has 8 divisors (see below), whose sum is σ = 19553201280. Its totient is φ = 16946105280.

The previous prime is 18236074511. The next prime is 18236074579. The reversal of 18236074573 is 37547063281.

It is a happy number.

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 18236074573 - 2⁹ = 18236074061 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 (18236074579) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6787963 + ... + 6790648.

It is an arithmetic number, because the mean of its divisors is an integer number (2444150160).

Almost surely, 2^18236074573 is an apocalyptic number.

It is an amenable number.

18236074573 is a deficient number, since it is larger than the sum of its proper divisors (1317126707).

18236074573 is a wasteful number, since it uses less digits than its factorization.

18236074573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13578707.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 18236074573 in words is "eighteen billion, two hundred thirty-six million, seventy-four thousand, five hundred seventy-three".