18794530023 has 4 divisors (see below), whose sum is σ = 25059373368. Its totient is φ = 12529686680.

The previous prime is 18794530021. The next prime is 18794530037. The reversal of 18794530023 is 32003549781.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18794530023 - 2¹ = 18794530021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18794530021) 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, 3132421668 + ... + 3132421673.

It is an arithmetic number, because the mean of its divisors is an integer number (6264843342).

Almost surely, 2^18794530023 is an apocalyptic number.

18794530023 is a deficient number, since it is larger than the sum of its proper divisors (6264843345).

18794530023 is an equidigital number, since it uses as much as digits as its factorization.

18794530023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6264843344.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 18794530023 in words is "eighteen billion, seven hundred ninety-four million, five hundred thirty thousand, twenty-three".