41639810609 has 4 divisors (see below), whose sum is σ = 41851180404. Its totient is φ = 41428440816.

The previous prime is 41639810593. The next prime is 41639810621. The reversal of 41639810609 is 90601893614.

41639810609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39958810609 + 1681000000 = 199897^2 + 41000^2 .

It is a cyclic number.

It is not a de Polignac number, because 41639810609 - 2⁴ = 41639810593 is a prime.

It is a super-3 number, since 3×41639810609³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41639810629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105684602 + ... + 105684995.

It is an arithmetic number, because the mean of its divisors is an integer number (10462795101).

Almost surely, 2^41639810609 is an apocalyptic number.

It is an amenable number.

41639810609 is a deficient number, since it is larger than the sum of its proper divisors (211369795).

41639810609 is a wasteful number, since it uses less digits than its factorization.

41639810609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211369794.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 41639810609 in words is "forty-one billion, six hundred thirty-nine million, eight hundred ten thousand, six hundred nine".