41644982021 has 6 divisors (see below), whose sum is σ = 43952183622. Its totient is φ = 39453140520.

The previous prime is 41644982017. The next prime is 41644982051. The reversal of 41644982021 is 12028944614.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26420877025 + 15224104996 = 162545^2 + 123386^2 .

It is not a de Polignac number, because 41644982021 - 2² = 41644982017 is a prime.

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 41644982021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41644982051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57679670 + ... + 57680391.

It is an arithmetic number, because the mean of its divisors is an integer number (7325363937).

Almost surely, 2^41644982021 is an apocalyptic number.

It is an amenable number.

41644982021 is a deficient number, since it is larger than the sum of its proper divisors (2307201601).

41644982021 is a wasteful number, since it uses less digits than its factorization.

41644982021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115360099 (or 115360080 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 41644982021 in words is "forty-one billion, six hundred forty-four million, nine hundred eighty-two thousand, twenty-one".