2089081871 has 4 divisors (see below), whose sum is σ = 2089243632. Its totient is φ = 2088920112.

The previous prime is 2089081859. The next prime is 2089081913. The reversal of 2089081871 is 1781809802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2089081871 - 2¹⁴ = 2089065487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089081271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59651 + ... + 87956.

It is an arithmetic number, because the mean of its divisors is an integer number (522310908).

Almost surely, 2^2089081871 is an apocalyptic number.

2089081871 is a deficient number, since it is larger than the sum of its proper divisors (161761).

2089081871 is a wasteful number, since it uses less digits than its factorization.

2089081871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161760.

The product of its (nonzero) digits is 64512, while the sum is 44.

The square root of 2089081871 is about 45706.4751539648. The cubic root of 2089081871 is about 1278.3560174881.

The spelling of 2089081871 in words is "two billion, eighty-nine million, eighty-one thousand, eight hundred seventy-one".