4881720817 has 2 divisors, whose sum is σ = 4881720818. Its totient is φ = 4881720816.

The previous prime is 4881720743. The next prime is 4881720853. The reversal of 4881720817 is 7180271884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4137576976 + 744143841 = 64324^2 + 27279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4881720817 is a prime.

It is a super-2 number, since 2×4881720817² = 47662396270262294978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4881720317) 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, 2440860408 + 2440860409.

It is an arithmetic number, because the mean of its divisors is an integer number (2440860409).

Almost surely, 2^4881720817 is an apocalyptic number.

It is an amenable number.

4881720817 is a deficient number, since it is larger than the sum of its proper divisors (1).

4881720817 is an equidigital number, since it uses as much as digits as its factorization.

4881720817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200704, while the sum is 46.

The square root of 4881720817 is about 69869.3124125320. The cubic root of 4881720817 is about 1696.3845675159.

The spelling of 4881720817 in words is "four billion, eight hundred eighty-one million, seven hundred twenty thousand, eight hundred seventeen".