2721667188 has 48 divisors (see below), whose sum is σ = 6631309440. Its totient is φ = 867170304.

The previous prime is 2721667181. The next prime is 2721667189. The reversal of 2721667188 is 8817661272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721667181) 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, 554248 + ... + 559136.

It is an arithmetic number, because the mean of its divisors is an integer number (138152280).

Almost surely, 2^2721667188 is an apocalyptic number.

It is an amenable number.

2721667188 is an abundant number, since it is smaller than the sum of its proper divisors (3909642252).

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

2721667188 is a wasteful number, since it uses less digits than its factorization.

2721667188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6936 (or 6934 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 2721667188 is about 52169.6002284856. The cubic root of 2721667188 is about 1396.1915519177.

The spelling of 2721667188 in words is "two billion, seven hundred twenty-one million, six hundred sixty-seven thousand, one hundred eighty-eight".