17905089138 has 16 divisors (see below), whose sum is σ = 35815726560. Its totient is φ = 5967438336.

The previous prime is 17905089119. The next prime is 17905089187. The reversal of 17905089138 is 83198050971.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 188623 + ... + 267186.

It is an arithmetic number, because the mean of its divisors is an integer number (2238482910).

Almost surely, 2^17905089138 is an apocalyptic number.

17905089138 is an abundant number, since it is smaller than the sum of its proper divisors (17910637422).

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

17905089138 is a wasteful number, since it uses less digits than its factorization.

17905089138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462361.

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 17905089138 in words is "seventeen billion, nine hundred five million, eighty-nine thousand, one hundred thirty-eight".