18684384314 has 8 divisors (see below), whose sum is σ = 28027727028. Its totient is φ = 9341808640.

The previous prime is 18684384307. The next prime is 18684384317. The reversal of 18684384314 is 41348348681.

It can be written as a sum of positive squares in 2 ways, for example, as 17481335089 + 1203049225 = 132217^2 + 34685^2 .

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

It is not an unprimeable number, because it can be changed into a prime (18684384317) 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, 126407 + ... + 230970.

Almost surely, 2^18684384314 is an apocalyptic number.

18684384314 is a deficient number, since it is larger than the sum of its proper divisors (9343342714).

18684384314 is a wasteful number, since it uses less digits than its factorization.

18684384314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383520.

The product of its digits is 1769472, while the sum is 50.

The spelling of 18684384314 in words is "eighteen billion, six hundred eighty-four million, three hundred eighty-four thousand, three hundred fourteen".