41644306809 has 12 divisors (see below), whose sum is σ = 68746157376. Its totient is φ = 23796746712.

The previous prime is 41644306787. The next prime is 41644306817. The reversal of 41644306809 is 90860344614.

41644306809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 41644306809 - 2⁵ = 41644306777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41644306409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330510309 + ... + 330510434.

It is an arithmetic number, because the mean of its divisors is an integer number (5728846448).

Almost surely, 2^41644306809 is an apocalyptic number.

It is an amenable number.

41644306809 is a deficient number, since it is larger than the sum of its proper divisors (27101850567).

41644306809 is a wasteful number, since it uses less digits than its factorization.

41644306809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661020756 (or 661020753 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 41644306809 in words is "forty-one billion, six hundred forty-four million, three hundred six thousand, eight hundred nine".