18214909611 has 16 divisors (see below), whose sum is σ = 24466821120. Its totient is φ = 12053468000.

The previous prime is 18214909577. The next prime is 18214909621. The reversal of 18214909611 is 11690941281.

It is a cyclic number.

It is not a de Polignac number, because 18214909611 - 2⁹ = 18214909099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18214909621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179350 + ... + 261908.

It is an arithmetic number, because the mean of its divisors is an integer number (1529176320).

Almost surely, 2^18214909611 is an apocalyptic number.

18214909611 is a deficient number, since it is larger than the sum of its proper divisors (6251911509).

18214909611 is a wasteful number, since it uses less digits than its factorization.

18214909611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83106.

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 18214909611 in words is "eighteen billion, two hundred fourteen million, nine hundred nine thousand, six hundred eleven".