2671721188 has 24 divisors (see below), whose sum is σ = 4758304824. Its totient is φ = 1312262400.

The previous prime is 2671721183. The next prime is 2671721191. The reversal of 2671721188 is 8811271762.

It can be written as a sum of positive squares in 4 ways, for example, as 52533504 + 2619187684 = 7248^2 + 51178^2 .

It is not an unprimeable number, because it can be changed into a prime (2671721183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193656 + ... + 206992.

It is an arithmetic number, because the mean of its divisors is an integer number (198262701).

Almost surely, 2^2671721188 is an apocalyptic number.

It is an amenable number.

2671721188 is a deficient number, since it is larger than the sum of its proper divisors (2086583636).

2671721188 is a wasteful number, since it uses less digits than its factorization.

2671721188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14223 (or 14221 counting only the distinct ones).

The product of its digits is 75264, while the sum is 43.

The square root of 2671721188 is about 51688.6949728855. The cubic root of 2671721188 is about 1387.5981480553.

The spelling of 2671721188 in words is "two billion, six hundred seventy-one million, seven hundred twenty-one thousand, one hundred eighty-eight".