41581043173 has 2 divisors, whose sum is σ = 41581043174. Its totient is φ = 41581043172.

The previous prime is 41581043167. The next prime is 41581043219. The reversal of 41581043173 is 37134018514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41504690529 + 76352644 = 203727^2 + 8738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41581043173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41581040173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20790521586 + 20790521587.

It is an arithmetic number, because the mean of its divisors is an integer number (20790521587).

Almost surely, 2^41581043173 is an apocalyptic number.

It is an amenable number.

41581043173 is a deficient number, since it is larger than the sum of its proper divisors (1).

41581043173 is an equidigital number, since it uses as much as digits as its factorization.

41581043173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 41581043173 in words is "forty-one billion, five hundred eighty-one million, forty-three thousand, one hundred seventy-three".