18023815214 has 16 divisors (see below), whose sum is σ = 27962720640. Its totient is φ = 8704051680.

The previous prime is 18023815211. The next prime is 18023815223. The reversal of 18023815214 is 41251832081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18023815211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254009 + ... + 317124.

It is an arithmetic number, because the mean of its divisors is an integer number (1747670040).

Almost surely, 2^18023815214 is an apocalyptic number.

18023815214 is a deficient number, since it is larger than the sum of its proper divisors (9938905426).

18023815214 is a wasteful number, since it uses less digits than its factorization.

18023815214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571675.

The product of its (nonzero) digits is 15360, while the sum is 35.

The spelling of 18023815214 in words is "eighteen billion, twenty-three million, eight hundred fifteen thousand, two hundred fourteen".