41856721738841 has 8 divisors (see below), whose sum is σ = 41887496294280. Its totient is φ = 41825957901952.

The previous prime is 41856721738837. The next prime is 41856721738921. The reversal of 41856721738841 is 14883712765814.

It can be written as a sum of positive squares in 4 ways, for example, as 25636601827600 + 16220119911241 = 5063260^2 + 4027421^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41856721738841 - 2² = 41856721738837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41856721732841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5141765 + ... + 10495293.

It is an arithmetic number, because the mean of its divisors is an integer number (5235937036785).

Almost surely, 2^{41856721738841} is an apocalyptic number.

It is an amenable number.

41856721738841 is a deficient number, since it is larger than the sum of its proper divisors (30774555439).

41856721738841 is a wasteful number, since it uses less digits than its factorization.

41856721738841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359275.

The product of its digits is 72253440, while the sum is 65.

The spelling of 41856721738841 in words is "forty-one trillion, eight hundred fifty-six billion, seven hundred twenty-one million, seven hundred thirty-eight thousand, eight hundred forty-one".