41365568809 has 4 divisors (see below), whose sum is σ = 41366367616. Its totient is φ = 41364770004.

The previous prime is 41365568791. The next prime is 41365568851. The reversal of 41365568809 is 90886556314.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41365568809 - 2⁷ = 41365568681 is a prime.

It is a super-2 number, since 2×41365568809² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41365568809.

It is not an unprimeable number, because it can be changed into a prime (41365568899) 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 3 ways as a sum of consecutive naturals, for example, 315909 + ... + 427234.

It is an arithmetic number, because the mean of its divisors is an integer number (10341591904).

Almost surely, 2^41365568809 is an apocalyptic number.

It is an amenable number.

41365568809 is a deficient number, since it is larger than the sum of its proper divisors (798807).

41365568809 is an equidigital number, since it uses as much as digits as its factorization.

41365568809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798806.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 41365568809 in words is "forty-one billion, three hundred sixty-five million, five hundred sixty-eight thousand, eight hundred nine".