18396368023 has 8 divisors (see below), whose sum is σ = 20558247696. Its totient is φ = 16316068800.

The previous prime is 18396368009. The next prime is 18396368041. The reversal of 18396368023 is 32086369381.

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 18396368023 - 2¹⁷ = 18396236951 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 (18396368923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20394636 + ... + 20395537.

It is an arithmetic number, because the mean of its divisors is an integer number (2569780962).

Almost surely, 2^18396368023 is an apocalyptic number.

18396368023 is a deficient number, since it is larger than the sum of its proper divisors (2161879673).

18396368023 is a wasteful number, since it uses less digits than its factorization.

18396368023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40790225.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 18396368023 in words is "eighteen billion, three hundred ninety-six million, three hundred sixty-eight thousand, twenty-three".