2108771065 has 8 divisors (see below), whose sum is σ = 2568294720. Its totient is φ = 1661837232.

The previous prime is 2108771039. The next prime is 2108771113. The reversal of 2108771065 is 5601778012.

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 2108771065 - 2⁵ = 2108771033 is a prime.

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, 3147085 + ... + 3147754.

It is an arithmetic number, because the mean of its divisors is an integer number (321036840).

Almost surely, 2^2108771065 is an apocalyptic number.

It is an amenable number.

2108771065 is a deficient number, since it is larger than the sum of its proper divisors (459523655).

2108771065 is an equidigital number, since it uses as much as digits as its factorization.

2108771065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294911.

The product of its (nonzero) digits is 23520, while the sum is 37.

The square root of 2108771065 is about 45921.3573950074. The cubic root of 2108771065 is about 1282.3595525530.

The spelling of 2108771065 in words is "two billion, one hundred eight million, seven hundred seventy-one thousand, sixty-five".