5406543943 has 2 divisors, whose sum is σ = 5406543944. Its totient is φ = 5406543942.

The previous prime is 5406543937. The next prime is 5406544027. The reversal of 5406543943 is 3493456045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5406543943 - 2⁵ = 5406543911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5406543943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5406543913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2703271971 + 2703271972.

It is an arithmetic number, because the mean of its divisors is an integer number (2703271972).

Almost surely, 2^5406543943 is an apocalyptic number.

5406543943 is a deficient number, since it is larger than the sum of its proper divisors (1).

5406543943 is an equidigital number, since it uses as much as digits as its factorization.

5406543943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 43.

The square root of 5406543943 is about 73529.2046944614. The cubic root of 5406543943 is about 1755.1190459366.

Adding to 5406543943 its reverse (3493456045), we get a palindrome (8899999988).

The spelling of 5406543943 in words is "five billion, four hundred six million, five hundred forty-three thousand, nine hundred forty-three".