41508851689 has 2 divisors, whose sum is σ = 41508851690. Its totient is φ = 41508851688.

The previous prime is 41508851687. The next prime is 41508851729. The reversal of 41508851689 is 98615880514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22532411664 + 18976440025 = 150108^2 + 137755^2 .

It is a cyclic number.

It is not a de Polignac number, because 41508851689 - 2¹ = 41508851687 is a prime.

Together with 41508851687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (41508851687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20754425844 + 20754425845.

It is an arithmetic number, because the mean of its divisors is an integer number (20754425845).

Almost surely, 2^41508851689 is an apocalyptic number.

It is an amenable number.

41508851689 is a deficient number, since it is larger than the sum of its proper divisors (1).

41508851689 is an equidigital number, since it uses as much as digits as its factorization.

41508851689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2764800, while the sum is 55.

The spelling of 41508851689 in words is "forty-one billion, five hundred eight million, eight hundred fifty-one thousand, six hundred eighty-nine".