17996891195 has 12 divisors (see below), whose sum is σ = 22366652880. Its totient is φ = 13901043744.

The previous prime is 17996891191. The next prime is 17996891207. The reversal of 17996891195 is 59119869971.

It is not a de Polignac number, because 17996891195 - 2² = 17996891191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17996891191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2135735 + ... + 2144144.

It is an arithmetic number, because the mean of its divisors is an integer number (1863887740).

Almost surely, 2^17996891195 is an apocalyptic number.

17996891195 is a deficient number, since it is larger than the sum of its proper divisors (4369761685).

17996891195 is an equidigital number, since it uses as much as digits as its factorization.

17996891195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279942 (or 4279913 counting only the distinct ones).

The product of its digits is 11022480, while the sum is 65.

The spelling of 17996891195 in words is "seventeen billion, nine hundred ninety-six million, eight hundred ninety-one thousand, one hundred ninety-five".