43641605207252 has 12 divisors (see below), whose sum is σ = 82247640582996. Its totient is φ = 20142279326400.

The previous prime is 43641605207227. The next prime is 43641605207257. The reversal of 43641605207252 is 25270250614634.

It can be written as a sum of positive squares in 2 ways, for example, as 6901107984016 + 36740497223236 = 2626996^2 + 6061394^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43641605207197 and 43641605207206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43641605207257) 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, 419630819249 + ... + 419630819352.

It is an arithmetic number, because the mean of its divisors is an integer number (6853970048583).

Almost surely, 2^{43641605207252} is an apocalyptic number.

It is an amenable number.

43641605207252 is a deficient number, since it is larger than the sum of its proper divisors (38606035375744).

43641605207252 is a wasteful number, since it uses less digits than its factorization.

43641605207252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839261638618 (or 839261638616 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 43641605207252 in words is "forty-three trillion, six hundred forty-one billion, six hundred five million, two hundred seven thousand, two hundred fifty-two".