18123603206 has 8 divisors (see below), whose sum is σ = 27266074680. Its totient is φ = 9034911648.

The previous prime is 18123603187. The next prime is 18123603233. The reversal of 18123603206 is 60230632181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13444136 + ... + 13445483.

It is an arithmetic number, because the mean of its divisors is an integer number (3408259335).

Almost surely, 2^18123603206 is an apocalyptic number.

18123603206 is a deficient number, since it is larger than the sum of its proper divisors (9142471474).

18123603206 is a wasteful number, since it uses less digits than its factorization.

18123603206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26889958.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 18123603206 in words is "eighteen billion, one hundred twenty-three million, six hundred three thousand, two hundred six".