2871191020 has 24 divisors (see below), whose sum is σ = 6033405168. Its totient is φ = 1147732800.

The previous prime is 2871190963. The next prime is 2871191041. The reversal of 2871191020 is 201911782.

It is an unprimeable number.

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, 14271 + ... + 77110.

It is an arithmetic number, because the mean of its divisors is an integer number (251391882).

Almost surely, 2^2871191020 is an apocalyptic number.

2871191020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2871191020 is an abundant number, since it is smaller than the sum of its proper divisors (3162214148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2871191020 is a wasteful number, since it uses less digits than its factorization.

2871191020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92961 (or 92959 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 2871191020 is about 53583.4957799508. The cubic root of 2871191020 is about 1421.3052568989.

The spelling of 2871191020 in words is "two billion, eight hundred seventy-one million, one hundred ninety-one thousand, twenty".