540839520722 has 6 divisors (see below), whose sum is σ = 811260841143. Its totient is φ = 270419240342.

The previous prime is 540839520721. The next prime is 540839520731. The reversal of 540839520722 is 227025938045.

It can be written as a sum of positive squares in only one way, i.e., 270419760361 + 270419760361 = 520019^2 + 520019^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=520019.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540839520721) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 780029 + ... + 1300047.

Almost surely, 2^540839520722 is an apocalyptic number.

540839520722 is a deficient number, since it is larger than the sum of its proper divisors (270421320421).

540839520722 is an frugal number, since it uses more digits than its factorization.

540839520722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040040 (or 520021 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 540839520722 in words is "five hundred forty billion, eight hundred thirty-nine million, five hundred twenty thousand, seven hundred twenty-two".