540423585522 has 18 divisors (see below), whose sum is σ = 1170924526317. Its totient is φ = 180140155536.

The previous prime is 540423585511. The next prime is 540423585529. The reversal of 540423585522 is 225585324045.

540423585522 is a `hidden beast` number, since 5 + 4 + 0 + 42 + 3 + 5 + 85 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 399994267401 + 140429318121 = 632451^2 + 374739^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=519819.

It is not an unprimeable number, because it can be changed into a prime (540423585529) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3032278 + ... + 3205550.

Almost surely, 2^540423585522 is an apocalyptic number.

540423585522 is an abundant number, since it is smaller than the sum of its proper divisors (630500940795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540423585522 is an frugal number, since it uses more digits than its factorization.

540423585522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346554 (or 173278 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 45.

The spelling of 540423585522 in words is "five hundred forty billion, four hundred twenty-three million, five hundred eighty-five thousand, five hundred twenty-two".