540344425903 has 4 divisors (see below), whose sum is σ = 540346633288. Its totient is φ = 540342218520.

The previous prime is 540344425883. The next prime is 540344425921. The reversal of 540344425903 is 309524443045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309524443045 = 5 ⋅61904888609.

It is a cyclic number.

It is not a de Polignac number, because 540344425903 - 2⁹ = 540344425391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540344425903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540344425303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683076 + ... + 1243897.

It is an arithmetic number, because the mean of its divisors is an integer number (135086658322).

Almost surely, 2^540344425903 is an apocalyptic number.

540344425903 is a deficient number, since it is larger than the sum of its proper divisors (2207385).

540344425903 is a wasteful number, since it uses less digits than its factorization.

540344425903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207384.

The product of its (nonzero) digits is 1036800, while the sum is 43.

Adding to 540344425903 its reverse (309524443045), we get a palindrome (849868868948).

The spelling of 540344425903 in words is "five hundred forty billion, three hundred forty-four million, four hundred twenty-five thousand, nine hundred three".