5543420243437 has 2 divisors, whose sum is σ = 5543420243438. Its totient is φ = 5543420243436.

The previous prime is 5543420243353. The next prime is 5543420243521. The reversal of 5543420243437 is 7343420243455.

It is a balanced prime because it is at equal distance from previous prime (5543420243353) and next prime (5543420243521).

It can be written as a sum of positive squares in only one way, i.e., 5283244757961 + 260175485476 = 2298531^2 + 510074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5543420243437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5543420246437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2771710121718 + 2771710121719.

It is an arithmetic number, because the mean of its divisors is an integer number (2771710121719).

Almost surely, 2^{5543420243437} is an apocalyptic number.

It is an amenable number.

5543420243437 is a deficient number, since it is larger than the sum of its proper divisors (1).

5543420243437 is an equidigital number, since it uses as much as digits as its factorization.

5543420243437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4838400, while the sum is 46.

The spelling of 5543420243437 in words is "five trillion, five hundred forty-three billion, four hundred twenty million, two hundred forty-three thousand, four hundred thirty-seven".