2871721104 has 160 divisors (see below), whose sum is σ = 8987520000. Its totient is φ = 771835392.

The previous prime is 2871721091. The next prime is 2871721117. The reversal of 2871721104 is 4011271782.

2871721104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2871721091) and next prime (2871721117).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 949707 + ... + 952725.

It is an arithmetic number, because the mean of its divisors is an integer number (56172000).

Almost surely, 2^2871721104 is an apocalyptic number.

2871721104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2871721104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4493760000).

2871721104 is an abundant number, since it is smaller than the sum of its proper divisors (6115798896).

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

2871721104 is a wasteful number, since it uses less digits than its factorization.

2871721104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 2871721104 is about 53588.4418881535. The cubic root of 2871721104 is about 1421.3927194200.

Adding to 2871721104 its reverse (4011271782), we get a palindrome (6882992886).

The spelling of 2871721104 in words is "two billion, eight hundred seventy-one million, seven hundred twenty-one thousand, one hundred four".