4870671721 has 2 divisors, whose sum is σ = 4870671722. Its totient is φ = 4870671720.

The previous prime is 4870671703. The next prime is 4870671811. The reversal of 4870671721 is 1271760784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4852515600 + 18156121 = 69660^2 + 4261^2 .

It is a cyclic number.

It is not a de Polignac number, because 4870671721 - 2¹³ = 4870663529 is a prime.

It is not a weakly prime, because it can be changed into another prime (4870672721) 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 as a sum of consecutive naturals, namely, 2435335860 + 2435335861.

It is an arithmetic number, because the mean of its divisors is an integer number (2435335861).

Almost surely, 2^4870671721 is an apocalyptic number.

It is an amenable number.

4870671721 is a deficient number, since it is larger than the sum of its proper divisors (1).

4870671721 is an equidigital number, since it uses as much as digits as its factorization.

4870671721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 4870671721 is about 69790.1978862361. The cubic root of 4870671721 is about 1695.1037572194.

The spelling of 4870671721 in words is "four billion, eight hundred seventy million, six hundred seventy-one thousand, seven hundred twenty-one".