2716722721 has 2 divisors, whose sum is σ = 2716722722. Its totient is φ = 2716722720.

The previous prime is 2716722713. The next prime is 2716722761. The reversal of 2716722721 is 1272276172.

2716722721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2715556321 + 1166400 = 52111^2 + 1080^2 .

It is a cyclic number.

It is not a de Polignac number, because 2716722721 - 2³ = 2716722713 is a prime.

It is not a weakly prime, because it can be changed into another prime (2716722761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1358361360 + 1358361361.

It is an arithmetic number, because the mean of its divisors is an integer number (1358361361).

Almost surely, 2^2716722721 is an apocalyptic number.

It is an amenable number.

2716722721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2716722721 is an equidigital number, since it uses as much as digits as its factorization.

2716722721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 37.

The square root of 2716722721 is about 52122.1902935784. The cubic root of 2716722721 is about 1395.3455499030.

Adding to 2716722721 its reverse (1272276172), we get a palindrome (3988998893).

The spelling of 2716722721 in words is "two billion, seven hundred sixteen million, seven hundred twenty-two thousand, seven hundred twenty-one".