17680638873 has 8 divisors (see below), whose sum is σ = 23595562368. Its totient is φ = 11776403984.

The previous prime is 17680638869. The next prime is 17680638947. The reversal of 17680638873 is 37883608671.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17680638873 - 2² = 17680638869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17680638823) 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 7 ways as a sum of consecutive naturals, for example, 2668290 + ... + 2674907.

It is an arithmetic number, because the mean of its divisors is an integer number (2949445296).

Almost surely, 2^17680638873 is an apocalyptic number.

It is an amenable number.

17680638873 is a deficient number, since it is larger than the sum of its proper divisors (5914923495).

17680638873 is a wasteful number, since it uses less digits than its factorization.

17680638873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344303.

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 17680638873 in words is "seventeen billion, six hundred eighty million, six hundred thirty-eight thousand, eight hundred seventy-three".