540868611859 has 4 divisors (see below), whose sum is σ = 543112880200. Its totient is φ = 538624343520.

The previous prime is 540868611847. The next prime is 540868611923. The reversal of 540868611859 is 958116868045.

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 540868611859 - 2⁵ = 540868611827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540868611797 and 540868611806.

It is not an unprimeable number, because it can be changed into a prime (540868611659) 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, 1122133809 + ... + 1122134290.

It is an arithmetic number, because the mean of its divisors is an integer number (135778220050).

Almost surely, 2^540868611859 is an apocalyptic number.

540868611859 is a deficient number, since it is larger than the sum of its proper divisors (2244268341).

540868611859 is a wasteful number, since it uses less digits than its factorization.

540868611859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244268340.

The product of its (nonzero) digits is 16588800, while the sum is 61.

The spelling of 540868611859 in words is "five hundred forty billion, eight hundred sixty-eight million, six hundred eleven thousand, eight hundred fifty-nine".