18863320006 has 4 divisors (see below), whose sum is σ = 28294980012. Its totient is φ = 9431660002.

The previous prime is 18863319991. The next prime is 18863320013. The reversal of 18863320006 is 60002336881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60002336881 = 479 ⋅125265839.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4715830000 + ... + 4715830003.

It is an arithmetic number, because the mean of its divisors is an integer number (7073745003).

Almost surely, 2^18863320006 is an apocalyptic number.

18863320006 is a deficient number, since it is larger than the sum of its proper divisors (9431660006).

18863320006 is an equidigital number, since it uses as much as digits as its factorization.

18863320006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9431660005.

The product of its (nonzero) digits is 41472, while the sum is 37.

Adding to 18863320006 its reverse (60002336881), we get a palindrome (78865656887).

The spelling of 18863320006 in words is "eighteen billion, eight hundred sixty-three million, three hundred twenty thousand, six".