2871571620 has 48 divisors (see below), whose sum is σ = 8389987200. Its totient is φ = 732458496.

The previous prime is 2871571613. The next prime is 2871571627. The reversal of 2871571620 is 261751782.

It is an interprime number because it is at equal distance from previous prime (2871571613) and next prime (2871571627).

It is not an unprimeable number, because it can be changed into a prime (2871571627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039045 + ... + 1041804.

It is an arithmetic number, because the mean of its divisors is an integer number (174791400).

Almost surely, 2^2871571620 is an apocalyptic number.

2871571620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2871571620 is an abundant number, since it is smaller than the sum of its proper divisors (5518415580).

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

2871571620 is a wasteful number, since it uses less digits than its factorization.

2871571620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080884 (or 2080882 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 2871571620 is about 53587.0471289471. The cubic root of 2871571620 is about 1421.3680560273.

The spelling of 2871571620 in words is "two billion, eight hundred seventy-one million, five hundred seventy-one thousand, six hundred twenty".