41908138561 has 12 divisors (see below), whose sum is σ = 43293669376. Its totient is φ = 40563845280.

The previous prime is 41908138543. The next prime is 41908138589. The reversal of 41908138561 is 16583180914.

It is not a de Polignac number, because 41908138561 - 2²⁹ = 41371267649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41908132561) 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 in 11 ways as a sum of consecutive naturals, for example, 115336 + ... + 311638.

Almost surely, 2^41908138561 is an apocalyptic number.

41908138561 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

41908138561 is a deficient number, since it is larger than the sum of its proper divisors (1385530815).

41908138561 is a wasteful number, since it uses less digits than its factorization.

41908138561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196512 (or 196471 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 41908138561 in words is "forty-one billion, nine hundred eight million, one hundred thirty-eight thousand, five hundred sixty-one".