43541920937 has 2 divisors, whose sum is σ = 43541920938. Its totient is φ = 43541920936.

The previous prime is 43541920907. The next prime is 43541920943. The reversal of 43541920937 is 73902914534.

It is a happy number.

43541920937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42308787481 + 1233133456 = 205691^2 + 35116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43541920937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43541920891 and 43541920900.

It is not a weakly prime, because it can be changed into another prime (43541920907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21770960468 + 21770960469.

It is an arithmetic number, because the mean of its divisors is an integer number (21770960469).

Almost surely, 2^43541920937 is an apocalyptic number.

It is an amenable number.

43541920937 is a deficient number, since it is larger than the sum of its proper divisors (1).

43541920937 is an equidigital number, since it uses as much as digits as its factorization.

43541920937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 47.

It can be divided in two parts, 4354 and 1920937, that added together give a palindrome (1925291).

The spelling of 43541920937 in words is "forty-three billion, five hundred forty-one million, nine hundred twenty thousand, nine hundred thirty-seven".