2720209713 has 32 divisors (see below), whose sum is σ = 4045138944. Its totient is φ = 1615263552.

The previous prime is 2720209711. The next prime is 2720209733. The reversal of 2720209713 is 3179020272.

It is not a de Polignac number, because 2720209713 - 2¹ = 2720209711 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2720209711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129420 + ... + 148962.

It is an arithmetic number, because the mean of its divisors is an integer number (126410592).

Almost surely, 2^2720209713 is an apocalyptic number.

It is an amenable number.

2720209713 is a deficient number, since it is larger than the sum of its proper divisors (1324929231).

2720209713 is a wasteful number, since it uses less digits than its factorization.

2720209713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19685.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 2720209713 is about 52155.6297344783. The cubic root of 2720209713 is about 1395.9422834256.

Adding to 2720209713 its reverse (3179020272), we get a palindrome (5899229985).

The spelling of 2720209713 in words is "two billion, seven hundred twenty million, two hundred nine thousand, seven hundred thirteen".