41678273729861 has 2 divisors, whose sum is σ = 41678273729862. Its totient is φ = 41678273729860.

The previous prime is 41678273729797. The next prime is 41678273729887. The reversal of 41678273729861 is 16892737287614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26238828088225 + 15439445641636 = 5122385^2 + 3929306^2 .

It is a cyclic number.

It is not a de Polignac number, because 41678273729861 - 2⁶ = 41678273729797 is a prime.

It is a super-2 number, since 2×41678273729861² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41678273720861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20839136864930 + 20839136864931.

It is an arithmetic number, because the mean of its divisors is an integer number (20839136864931).

Almost surely, 2^{41678273729861} is an apocalyptic number.

It is an amenable number.

41678273729861 is a deficient number, since it is larger than the sum of its proper divisors (1).

41678273729861 is an equidigital number, since it uses as much as digits as its factorization.

41678273729861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 341397504, while the sum is 71.

The spelling of 41678273729861 in words is "forty-one trillion, six hundred seventy-eight billion, two hundred seventy-three million, seven hundred twenty-nine thousand, eight hundred sixty-one".