41944864069 has 2 divisors, whose sum is σ = 41944864070. Its totient is φ = 41944864068.

The previous prime is 41944864051. The next prime is 41944864121. The reversal of 41944864069 is 96046844914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41763827044 + 181037025 = 204362^2 + 13455^2 .

It is a cyclic number.

It is not a de Polignac number, because 41944864069 - 2¹¹ = 41944862021 is a prime.

It is a super-2 number, since 2×41944864069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41944864669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20972432034 + 20972432035.

It is an arithmetic number, because the mean of its divisors is an integer number (20972432035).

Almost surely, 2^41944864069 is an apocalyptic number.

It is an amenable number.

41944864069 is a deficient number, since it is larger than the sum of its proper divisors (1).

41944864069 is an equidigital number, since it uses as much as digits as its factorization.

41944864069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 41944864069 in words is "forty-one billion, nine hundred forty-four million, eight hundred sixty-four thousand, sixty-nine".