18808975185 has 256 divisors, whose sum is σ = 44181946368. Its totient is φ = 6569164800.

The previous prime is 18808975183. The next prime is 18808975189. The reversal of 18808975185 is 58157980881.

It is not a de Polignac number, because 18808975185 - 2¹ = 18808975183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18808975183) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 7911717 + ... + 7914093.

It is an arithmetic number, because the mean of its divisors is an integer number (172585728).

Almost surely, 2^18808975185 is an apocalyptic number.

18808975185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18808975185 is an abundant number, since it is smaller than the sum of its proper divisors (25372971183).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18808975185 is a wasteful number, since it uses less digits than its factorization.

18808975185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its (nonzero) digits is 6451200, while the sum is 60.

The spelling of 18808975185 in words is "eighteen billion, eight hundred eight million, nine hundred seventy-five thousand, one hundred eighty-five".