18805267930 has 64 divisors (see below), whose sum is σ = 34672364928. Its totient is φ = 7341926400.

The previous prime is 18805267909. The next prime is 18805267963. The reversal of 18805267930 is 3976250881.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46895730 + ... + 46896130.

It is an arithmetic number, because the mean of its divisors is an integer number (541755702).

Almost surely, 2^18805267930 is an apocalyptic number.

18805267930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18805267930 is a deficient number, since it is larger than the sum of its proper divisors (15867096998).

18805267930 is a wasteful number, since it uses less digits than its factorization.

18805267930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 18805267930 in words is "eighteen billion, eight hundred five million, two hundred sixty-seven thousand, nine hundred thirty".