4272960721 has 2 divisors, whose sum is σ = 4272960722. Its totient is φ = 4272960720.

The previous prime is 4272960707. The next prime is 4272960739. The reversal of 4272960721 is 1270692724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4214606400 + 58354321 = 64920^2 + 7639^2 .

It is a cyclic number.

It is not a de Polignac number, because 4272960721 - 2¹¹ = 4272958673 is a prime.

It is not a weakly prime, because it can be changed into another prime (4272960701) 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 as a sum of consecutive naturals, namely, 2136480360 + 2136480361.

It is an arithmetic number, because the mean of its divisors is an integer number (2136480361).

Almost surely, 2^4272960721 is an apocalyptic number.

It is an amenable number.

4272960721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4272960721 is an equidigital number, since it uses as much as digits as its factorization.

4272960721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 4272960721 is about 65367.8875366185. The cubic root of 4272960721 is about 1622.7176759288.

The spelling of 4272960721 in words is "four billion, two hundred seventy-two million, nine hundred sixty thousand, seven hundred twenty-one".