540344442353511 has 4 divisors (see below), whose sum is σ = 720459256471352. Its totient is φ = 360229628235672.

The previous prime is 540344442353509. The next prime is 540344442353603. The reversal of 540344442353511 is 115353244443045.

It is a happy number.

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

It is not a de Polignac number, because 540344442353511 - 2¹ = 540344442353509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540364442353511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90057407058916 + ... + 90057407058921.

It is an arithmetic number, because the mean of its divisors is an integer number (180114814117838).

Almost surely, 2^{540344442353511} is an apocalyptic number.

540344442353511 is a deficient number, since it is larger than the sum of its proper divisors (180114814117841).

540344442353511 is a wasteful number, since it uses less digits than its factorization.

540344442353511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180114814117840.

The product of its (nonzero) digits is 6912000, while the sum is 48.

Adding to 540344442353511 its reverse (115353244443045), we get a palindrome (655697686796556).

The spelling of 540344442353511 in words is "five hundred forty trillion, three hundred forty-four billion, four hundred forty-two million, three hundred fifty-three thousand, five hundred eleven".