540040568919 has 4 divisors (see below), whose sum is σ = 720054091896. Its totient is φ = 360027045944.

The previous prime is 540040568891. The next prime is 540040568923. The reversal of 540040568919 is 919865040045.

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 540040568919 - 2¹³ = 540040560727 is a prime.

It is a super-2 number, since 2×540040568919² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540040568989) 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, 90006761484 + ... + 90006761489.

It is an arithmetic number, because the mean of its divisors is an integer number (180013522974).

Almost surely, 2^540040568919 is an apocalyptic number.

540040568919 is a deficient number, since it is larger than the sum of its proper divisors (180013522977).

540040568919 is a wasteful number, since it uses less digits than its factorization.

540040568919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180013522976.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The spelling of 540040568919 in words is "five hundred forty billion, forty million, five hundred sixty-eight thousand, nine hundred nineteen".