18830304465 has 32 divisors (see below), whose sum is σ = 34651902720. Its totient is φ = 8553302784.

The previous prime is 18830304463. The next prime is 18830304469. The reversal of 18830304465 is 56440303881.

It is not a de Polignac number, because 18830304465 - 2¹ = 18830304463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18830304463) by changing a digit.

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, 554650 + ... + 587619.

It is an arithmetic number, because the mean of its divisors is an integer number (1082871960).

Almost surely, 2^18830304465 is an apocalyptic number.

18830304465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18830304465 is a deficient number, since it is larger than the sum of its proper divisors (15821598255).

18830304465 is a wasteful number, since it uses less digits than its factorization.

18830304465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142441.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 18830304465 in words is "eighteen billion, eight hundred thirty million, three hundred four thousand, four hundred sixty-five".