871871155 has 16 divisors (see below), whose sum is σ = 1056768768. Its totient is φ = 690508000.

The previous prime is 871871149. The next prime is 871871171. The reversal of 871871155 is 551178178.

It is not a de Polignac number, because 871871155 - 2⁵ = 871871123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320250 + ... + 322960.

It is an arithmetic number, because the mean of its divisors is an integer number (66048048).

Almost surely, 2^871871155 is an apocalyptic number.

871871155 is a deficient number, since it is larger than the sum of its proper divisors (184897613).

871871155 is a wasteful number, since it uses less digits than its factorization.

871871155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338.

The product of its digits is 78400, while the sum is 43.

The square root of 871871155 is about 29527.4644187407. The cubic root of 871871155 is about 955.3241792994.

The spelling of 871871155 in words is "eight hundred seventy-one million, eight hundred seventy-one thousand, one hundred fifty-five".