43561505240212 has 12 divisors (see below), whose sum is σ = 76513935405376. Its totient is φ = 21700380838680.

The previous prime is 43561505240207. The next prime is 43561505240221. The reversal of 43561505240212 is 21204250516534.

43561505240212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20092944138 + ... + 20092946305.

Almost surely, 2^{43561505240212} is an apocalyptic number.

It is an amenable number.

43561505240212 is a deficient number, since it is larger than the sum of its proper divisors (32952430165164).

43561505240212 is a wasteful number, since it uses less digits than its factorization.

43561505240212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40185890718 (or 40185890716 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

Adding to 43561505240212 its reverse (21204250516534), we get a palindrome (64765755756746).

The spelling of 43561505240212 in words is "forty-three trillion, five hundred sixty-one billion, five hundred five million, two hundred forty thousand, two hundred twelve".