2712643221 has 16 divisors (see below), whose sum is σ = 3691464128. Its totient is φ = 1771372800.

The previous prime is 2712643201. The next prime is 2712643223. The reversal of 2712643221 is 1223462172.

It is not a de Polignac number, because 2712643221 - 2²⁶ = 2645534357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2712643223) 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 15 ways as a sum of consecutive naturals, for example, 13350 + ... + 74856.

It is an arithmetic number, because the mean of its divisors is an integer number (230716508).

Almost surely, 2^2712643221 is an apocalyptic number.

It is an amenable number.

2712643221 is a deficient number, since it is larger than the sum of its proper divisors (978820907).

2712643221 is a wasteful number, since it uses less digits than its factorization.

2712643221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61812.

The product of its digits is 8064, while the sum is 30.

The square root of 2712643221 is about 52083.0415874496. The cubic root of 2712643221 is about 1394.6467712181.

The spelling of 2712643221 in words is "two billion, seven hundred twelve million, six hundred forty-three thousand, two hundred twenty-one".