18875349223 has 4 divisors (see below), whose sum is σ = 19484231488. Its totient is φ = 18266466960.

The previous prime is 18875349221. The next prime is 18875349281. The reversal of 18875349223 is 32294357881.

It is a happy number.

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 18875349223 - 2¹ = 18875349221 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 (18875349221) 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 3 ways as a sum of consecutive naturals, for example, 304441086 + ... + 304441147.

It is an arithmetic number, because the mean of its divisors is an integer number (4871057872).

Almost surely, 2^18875349223 is an apocalyptic number.

18875349223 is a deficient number, since it is larger than the sum of its proper divisors (608882265).

18875349223 is an equidigital number, since it uses as much as digits as its factorization.

18875349223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608882264.

The product of its digits is 2903040, while the sum is 52.

The spelling of 18875349223 in words is "eighteen billion, eight hundred seventy-five million, three hundred forty-nine thousand, two hundred twenty-three".