43442214437 has 2 divisors, whose sum is σ = 43442214438. Its totient is φ = 43442214436.

The previous prime is 43442214427. The next prime is 43442214521. The reversal of 43442214437 is 73441224434.

43442214437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42918994561 + 523219876 = 207169^2 + 22874^2 .

It is a cyclic number.

It is not a de Polignac number, because 43442214437 - 2⁶ = 43442214373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43442214437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43442214427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21721107218 + 21721107219.

It is an arithmetic number, because the mean of its divisors is an integer number (21721107219).

Almost surely, 2^43442214437 is an apocalyptic number.

It is an amenable number.

43442214437 is a deficient number, since it is larger than the sum of its proper divisors (1).

43442214437 is an equidigital number, since it uses as much as digits as its factorization.

43442214437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 38.

The spelling of 43442214437 in words is "forty-three billion, four hundred forty-two million, two hundred fourteen thousand, four hundred thirty-seven".