41686307668 has 24 divisors (see below), whose sum is σ = 75355813512. Its totient is φ = 20162588544.

The previous prime is 41686307647. The next prime is 41686307681. The reversal of 41686307668 is 86670368614.

It can be written as a sum of positive squares in 4 ways, for example, as 36137249604 + 5549058064 = 190098^2 + 74492^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 788455 + ... + 839662.

It is an arithmetic number, because the mean of its divisors is an integer number (3139825563).

Almost surely, 2^41686307668 is an apocalyptic number.

It is an amenable number.

41686307668 is a deficient number, since it is larger than the sum of its proper divisors (33669505844).

41686307668 is a wasteful number, since it uses less digits than its factorization.

41686307668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628331 (or 1628329 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 41686307668 in words is "forty-one billion, six hundred eighty-six million, three hundred seven thousand, six hundred sixty-eight".