18704714686 has 16 divisors (see below), whose sum is σ = 32317710336. Its totient is φ = 7953185016.

The previous prime is 18704714681. The next prime is 18704714723. The reversal of 18704714686 is 68641740781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18704714681) 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, 5258266 + ... + 5261821.

It is an arithmetic number, because the mean of its divisors is an integer number (2019856896).

Almost surely, 2^18704714686 is an apocalyptic number.

18704714686 is a deficient number, since it is larger than the sum of its proper divisors (13612995650).

18704714686 is a wasteful number, since it uses less digits than its factorization.

18704714686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10520223.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 18704714686 in words is "eighteen billion, seven hundred four million, seven hundred fourteen thousand, six hundred eighty-six".