41856885522173 has 2 divisors, whose sum is σ = 41856885522174. Its totient is φ = 41856885522172.

The previous prime is 41856885522157. The next prime is 41856885522209. The reversal of 41856885522173 is 37122558865814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27789787646404 + 14067097875769 = 5271602^2 + 3750613^2 .

It is a cyclic number.

It is not a de Polignac number, because 41856885522173 - 2⁴ = 41856885522157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41856885522103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20928442761086 + 20928442761087.

It is an arithmetic number, because the mean of its divisors is an integer number (20928442761087).

Almost surely, 2^{41856885522173} is an apocalyptic number.

It is an amenable number.

41856885522173 is a deficient number, since it is larger than the sum of its proper divisors (1).

41856885522173 is an equidigital number, since it uses as much as digits as its factorization.

41856885522173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024000, while the sum is 65.

The spelling of 41856885522173 in words is "forty-one trillion, eight hundred fifty-six billion, eight hundred eighty-five million, five hundred twenty-two thousand, one hundred seventy-three".