18000810927 has 48 divisors (see below), whose sum is σ = 30904339200. Its totient is φ = 10267793280.

The previous prime is 18000810871. The next prime is 18000810937. The reversal of 18000810927 is 72901800081.

It is not a de Polignac number, because 18000810927 - 2¹⁰ = 18000809903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18000810891 and 18000810900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18000810937) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 19027 + ... + 190692.

It is an arithmetic number, because the mean of its divisors is an integer number (643840400).

Almost surely, 2^18000810927 is an apocalyptic number.

18000810927 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

18000810927 is a deficient number, since it is larger than the sum of its proper divisors (12903528273).

18000810927 is a wasteful number, since it uses less digits than its factorization.

18000810927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209773 (or 209750 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The spelling of 18000810927 in words is "eighteen billion, eight hundred ten thousand, nine hundred twenty-seven".