18189760450 has 24 divisors (see below), whose sum is σ = 35303954688. Its totient is φ = 6959560080.

The previous prime is 18189760417. The next prime is 18189760469. The reversal of 18189760450 is 5406798181.

It is a junction number, because it is equal to n+sod(n) for n = 18189760394 and 18189760403.

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 11 ways as a sum of consecutive naturals, for example, 7907442 + ... + 7909741.

It is an arithmetic number, because the mean of its divisors is an integer number (1470998112).

Almost surely, 2^18189760450 is an apocalyptic number.

18189760450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18189760450 is a deficient number, since it is larger than the sum of its proper divisors (17114194238).

18189760450 is a wasteful number, since it uses less digits than its factorization.

18189760450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15817218 (or 15817213 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 18189760450 in words is "eighteen billion, one hundred eighty-nine million, seven hundred sixty thousand, four hundred fifty".