18669129814 has 24 divisors (see below), whose sum is σ = 28980117144. Its totient is φ = 9019735200.

The previous prime is 18669129803. The next prime is 18669129823. The reversal of 18669129814 is 41892196681.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1321074 + ... + 1335130.

It is an arithmetic number, because the mean of its divisors is an integer number (1207504881).

Almost surely, 2^18669129814 is an apocalyptic number.

18669129814 is a deficient number, since it is larger than the sum of its proper divisors (10310987330).

18669129814 is a wasteful number, since it uses less digits than its factorization.

18669129814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14812 (or 14781 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 55.

The spelling of 18669129814 in words is "eighteen billion, six hundred sixty-nine million, one hundred twenty-nine thousand, eight hundred fourteen".