540042321543 has 8 divisors (see below), whose sum is σ = 720291676656. Its totient is φ = 359910590400.

The previous prime is 540042321529. The next prime is 540042321601. The reversal of 540042321543 is 345123240045.

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

It is not a de Polignac number, because 540042321543 - 2⁶ = 540042321479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540042321523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29395278 + ... + 29413643.

It is an arithmetic number, because the mean of its divisors is an integer number (90036459582).

Almost surely, 2^540042321543 is an apocalyptic number.

540042321543 is a deficient number, since it is larger than the sum of its proper divisors (180249355113).

540042321543 is a wasteful number, since it uses less digits than its factorization.

540042321543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58811985.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 540042321543 its reverse (345123240045), we get a palindrome (885165561588).

The spelling of 540042321543 in words is "five hundred forty billion, forty-two million, three hundred twenty-one thousand, five hundred forty-three".