4138871109281 has 2 divisors, whose sum is σ = 4138871109282. Its totient is φ = 4138871109280.

The previous prime is 4138871109271. The next prime is 4138871109283. The reversal of 4138871109281 is 1829011788314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3460251030625 + 678620078656 = 1860175^2 + 823784^2 .

It is a cyclic number.

It is not a de Polignac number, because 4138871109281 - 2¹⁴ = 4138871092897 is a prime.

It is a super-2 number, since 2×4138871109281² (a number of 26 digits) contains 22 as substring.

Together with 4138871109283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4138871109283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069435554640 + 2069435554641.

It is an arithmetic number, because the mean of its divisors is an integer number (2069435554641).

Almost surely, 2^{4138871109281} is an apocalyptic number.

It is an amenable number.

4138871109281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4138871109281 is an equidigital number, since it uses as much as digits as its factorization.

4138871109281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 53.

The spelling of 4138871109281 in words is "four trillion, one hundred thirty-eight billion, eight hundred seventy-one million, one hundred nine thousand, two hundred eighty-one".