41785359617 has 2 divisors, whose sum is σ = 41785359618. Its totient is φ = 41785359616.

The previous prime is 41785359611. The next prime is 41785359619. The reversal of 41785359617 is 71695358714.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31233139441 + 10552220176 = 176729^2 + 102724^2 .

It is a cyclic number.

It is not a de Polignac number, because 41785359617 - 2⁸ = 41785359361 is a prime.

Together with 41785359619, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (41785359611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20892679808 + 20892679809.

It is an arithmetic number, because the mean of its divisors is an integer number (20892679809).

Almost surely, 2^41785359617 is an apocalyptic number.

It is an amenable number.

41785359617 is a deficient number, since it is larger than the sum of its proper divisors (1).

41785359617 is an equidigital number, since it uses as much as digits as its factorization.

41785359617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 56.

The spelling of 41785359617 in words is "forty-one billion, seven hundred eighty-five million, three hundred fifty-nine thousand, six hundred seventeen".