540243423431 has 8 divisors (see below), whose sum is σ = 565219697280. Its totient is φ = 515391102072.

The previous prime is 540243423407. The next prime is 540243423437. The reversal of 540243423431 is 134324342045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540243423431 - 2²⁶ = 540176314567 is a prime.

It is a super-2 number, since 2×540243423431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540243423391 and 540243423400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540243423437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30979205 + ... + 30996638.

It is an arithmetic number, because the mean of its divisors is an integer number (70652462160).

Almost surely, 2^540243423431 is an apocalyptic number.

540243423431 is a deficient number, since it is larger than the sum of its proper divisors (24976273849).

540243423431 is a wasteful number, since it uses less digits than its factorization.

540243423431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61976245.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 540243423431 its reverse (134324342045), we get a palindrome (674567765476).

The spelling of 540243423431 in words is "five hundred forty billion, two hundred forty-three million, four hundred twenty-three thousand, four hundred thirty-one".