18670036223 has 4 divisors (see below), whose sum is σ = 19272295488. Its totient is φ = 18067776960.

The previous prime is 18670036207. The next prime is 18670036279. The reversal of 18670036223 is 32263007681.

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 18670036223 - 2⁴ = 18670036207 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 (18670033223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301129586 + ... + 301129647.

It is an arithmetic number, because the mean of its divisors is an integer number (4818073872).

Almost surely, 2^18670036223 is an apocalyptic number.

18670036223 is a deficient number, since it is larger than the sum of its proper divisors (602259265).

18670036223 is an equidigital number, since it uses as much as digits as its factorization.

18670036223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602259264.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 18670036223 in words is "eighteen billion, six hundred seventy million, thirty-six thousand, two hundred twenty-three".