5431240540543 has 4 divisors (see below), whose sum is σ = 5750725278240. Its totient is φ = 5111755802848.

The previous prime is 5431240540519. The next prime is 5431240540549. The reversal of 5431240540543 is 3450450421345.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5431240540543 - 2⁹ = 5431240540031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5431240540496 and 5431240540505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431240540549) by changing a digit.

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, 159742368823 + ... + 159742368856.

It is an arithmetic number, because the mean of its divisors is an integer number (1437681319560).

Almost surely, 2^{5431240540543} is an apocalyptic number.

5431240540543 is a deficient number, since it is larger than the sum of its proper divisors (319484737697).

5431240540543 is a wasteful number, since it uses less digits than its factorization.

5431240540543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319484737696.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 5431240540543 its reverse (3450450421345), we get a palindrome (8881690961888).

The spelling of 5431240540543 in words is "five trillion, four hundred thirty-one billion, two hundred forty million, five hundred forty thousand, five hundred forty-three".