2721082878 has 24 divisors (see below), whose sum is σ = 5896665216. Its totient is φ = 906876000.

The previous prime is 2721082829. The next prime is 2721082879. The reversal of 2721082878 is 8782801272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721082879) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 167203 + ... + 182753.

It is an arithmetic number, because the mean of its divisors is an integer number (245694384).

Almost surely, 2^2721082878 is an apocalyptic number.

2721082878 is an abundant number, since it is smaller than the sum of its proper divisors (3175582338).

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

2721082878 is a wasteful number, since it uses less digits than its factorization.

2721082878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25280 (or 25277 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The square root of 2721082878 is about 52163.9998274672. Note that the first 3 decimals coincide. The cubic root of 2721082878 is about 1396.0916294538.

The spelling of 2721082878 in words is "two billion, seven hundred twenty-one million, eighty-two thousand, eight hundred seventy-eight".