18723023297 has 8 divisors (see below), whose sum is σ = 21129431040. Its totient is φ = 16434001360.

The previous prime is 18723023281. The next prime is 18723023299. The reversal of 18723023297 is 79232032781.

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 18723023297 - 2⁴ = 18723023281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18723023299) 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, 29346113 + ... + 29346750.

It is an arithmetic number, because the mean of its divisors is an integer number (2641178880).

Almost surely, 2^18723023297 is an apocalyptic number.

It is an amenable number.

18723023297 is a deficient number, since it is larger than the sum of its proper divisors (2406407743).

18723023297 is a wasteful number, since it uses less digits than its factorization.

18723023297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58692903.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 18723023297 in words is "eighteen billion, seven hundred twenty-three million, twenty-three thousand, two hundred ninety-seven".