18668700350 has 48 divisors (see below), whose sum is σ = 35396663040. Its totient is φ = 7323381600.

The previous prime is 18668700319. The next prime is 18668700403. The reversal of 18668700350 is 5300786681.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1264109 + ... + 1278791.

It is an arithmetic number, because the mean of its divisors is an integer number (737430480).

Almost surely, 2^18668700350 is an apocalyptic number.

18668700350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18668700350 is a deficient number, since it is larger than the sum of its proper divisors (16727962690).

18668700350 is a wasteful number, since it uses less digits than its factorization.

18668700350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15185 (or 15180 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 18668700350 in words is "eighteen billion, six hundred sixty-eight million, seven hundred thousand, three hundred fifty".