5000171681 has 2 divisors, whose sum is σ = 5000171682. Its totient is φ = 5000171680.

The previous prime is 5000171669. The next prime is 5000171711. The reversal of 5000171681 is 1861710005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3011814400 + 1988357281 = 54880^2 + 44591^2 .

It is a cyclic number.

It is not a de Polignac number, because 5000171681 - 2¹⁰ = 5000170657 is a prime.

It is a super-2 number, since 2×5000171681² = 50003433678948731522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5000171581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500085840 + 2500085841.

It is an arithmetic number, because the mean of its divisors is an integer number (2500085841).

Almost surely, 2^5000171681 is an apocalyptic number.

It is an amenable number.

5000171681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5000171681 is an equidigital number, since it uses as much as digits as its factorization.

5000171681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 5000171681 is about 70711.8920762272. The cubic root of 5000171681 is about 1709.9955178114.

Adding to 5000171681 its reverse (1861710005), we get a palindrome (6861881686).

The spelling of 5000171681 in words is "five billion, one hundred seventy-one thousand, six hundred eighty-one".