41636947969 has 4 divisors (see below), whose sum is σ = 41641376980. Its totient is φ = 41632518960.

The previous prime is 41636947951. The next prime is 41636947973. The reversal of 41636947969 is 96974963614.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26083865025 + 15553082944 = 161505^2 + 124712^2 .

It is a cyclic number.

It is not a de Polignac number, because 41636947969 - 2²³ = 41628559361 is a prime.

It is a super-2 number, since 2×41636947969² (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 41636947969.

It is not an unprimeable number, because it can be changed into a prime (41636947949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200374 + ... + 2219215.

It is an arithmetic number, because the mean of its divisors is an integer number (10410344245).

Almost surely, 2^41636947969 is an apocalyptic number.

It is an amenable number.

41636947969 is a deficient number, since it is larger than the sum of its proper divisors (4429011).

41636947969 is an equidigital number, since it uses as much as digits as its factorization.

41636947969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429010.

The product of its digits is 52907904, while the sum is 64.

The spelling of 41636947969 in words is "forty-one billion, six hundred thirty-six million, nine hundred forty-seven thousand, nine hundred sixty-nine".