18665484830 has 8 divisors (see below), whose sum is σ = 33597872712. Its totient is φ = 7466193928.

The previous prime is 18665484821. The next prime is 18665484847. The reversal of 18665484830 is 3848456681.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933274232 + ... + 933274251.

It is an arithmetic number, because the mean of its divisors is an integer number (4199734089).

Almost surely, 2^18665484830 is an apocalyptic number.

18665484830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18665484830 is a deficient number, since it is larger than the sum of its proper divisors (14932387882).

18665484830 is a wasteful number, since it uses less digits than its factorization.

18665484830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866548490.

The product of its (nonzero) digits is 4423680, while the sum is 53.

The spelling of 18665484830 in words is "eighteen billion, six hundred sixty-five million, four hundred eighty-four thousand, eight hundred thirty".