2109871167 has 8 divisors (see below), whose sum is σ = 2935473024. Its totient is φ = 1345425048.

The previous prime is 2109871163. The next prime is 2109871217. The reversal of 2109871167 is 7611789012.

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

It is not a de Polignac number, because 2109871167 - 2² = 2109871163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109871163) 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, 15288853 + ... + 15288990.

It is an arithmetic number, because the mean of its divisors is an integer number (366934128).

Almost surely, 2^2109871167 is an apocalyptic number.

2109871167 is a deficient number, since it is larger than the sum of its proper divisors (825601857).

2109871167 is a wasteful number, since it uses less digits than its factorization.

2109871167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30577869.

The product of its (nonzero) digits is 42336, while the sum is 42.

The square root of 2109871167 is about 45933.3339417029. Note that the first 3 decimals coincide. The cubic root of 2109871167 is about 1282.5825072219.

The spelling of 2109871167 in words is "two billion, one hundred nine million, eight hundred seventy-one thousand, one hundred sixty-seven".