540327648689 has 2 divisors, whose sum is σ = 540327648690. Its totient is φ = 540327648688.

The previous prime is 540327648659. The next prime is 540327648691. The reversal of 540327648689 is 986846723045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 417290160400 + 123037488289 = 645980^2 + 350767^2 .

It is a cyclic number.

It is not a de Polignac number, because 540327648689 - 2²⁴ = 540310871473 is a prime.

Together with 540327648691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (540327648659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270163824344 + 270163824345.

It is an arithmetic number, because the mean of its divisors is an integer number (270163824345).

Almost surely, 2^540327648689 is an apocalyptic number.

It is an amenable number.

540327648689 is a deficient number, since it is larger than the sum of its proper divisors (1).

540327648689 is an equidigital number, since it uses as much as digits as its factorization.

540327648689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69672960, while the sum is 62.

The spelling of 540327648689 in words is "five hundred forty billion, three hundred twenty-seven million, six hundred forty-eight thousand, six hundred eighty-nine".