17985879119 has 16 divisors (see below), whose sum is σ = 20292679680. Its totient is φ = 15826963680.

The previous prime is 17985879101. The next prime is 17985879179. The reversal of 17985879119 is 91197858971.

It is a cyclic number.

It is not a de Polignac number, because 17985879119 - 2⁸ = 17985878863 is a prime.

It is a super-2 number, since 2×17985879119² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17985879179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306059 + ... + 360060.

It is an arithmetic number, because the mean of its divisors is an integer number (1268292480).

Almost surely, 2^17985879119 is an apocalyptic number.

17985879119 is a deficient number, since it is larger than the sum of its proper divisors (2306800561).

17985879119 is a wasteful number, since it uses less digits than its factorization.

17985879119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666230.

The product of its digits is 11430720, while the sum is 65.

The spelling of 17985879119 in words is "seventeen billion, nine hundred eighty-five million, eight hundred seventy-nine thousand, one hundred nineteen".