108995871617 has 4 divisors (see below), whose sum is σ = 109096144896. Its totient is φ = 108895598340.

The previous prime is 108995871553. The next prime is 108995871631. The reversal of 108995871617 is 716178599801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 108995871617 - 2⁶ = 108995871553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108995871617.

It is not an unprimeable number, because it can be changed into a prime (108995831617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50135009 + ... + 50137182.

It is an arithmetic number, because the mean of its divisors is an integer number (27274036224).

Almost surely, 2^108995871617 is an apocalyptic number.

It is an amenable number.

108995871617 is a deficient number, since it is larger than the sum of its proper divisors (100273279).

108995871617 is a wasteful number, since it uses less digits than its factorization.

108995871617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100273278.

The product of its (nonzero) digits is 7620480, while the sum is 62.

The spelling of 108995871617 in words is "one hundred eight billion, nine hundred ninety-five million, eight hundred seventy-one thousand, six hundred seventeen".