540327648691 has 2 divisors, whose sum is σ = 540327648692. Its totient is φ = 540327648690.

The previous prime is 540327648689. The next prime is 540327648733. The reversal of 540327648691 is 196846723045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540327648691 - 2¹ = 540327648689 is a prime.

Together with 540327648689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (540327448691) 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 as a sum of consecutive naturals, namely, 270163824345 + 270163824346.

It is an arithmetic number, because the mean of its divisors is an integer number (270163824346).

It is a 1-persistent number, because it is pandigital, but 2⋅540327648691 = 1080655297382 is not.

Almost surely, 2^540327648691 is an apocalyptic number.

540327648691 is a deficient number, since it is larger than the sum of its proper divisors (1).

540327648691 is an equidigital number, since it uses as much as digits as its factorization.

540327648691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 540327648691 in words is "five hundred forty billion, three hundred twenty-seven million, six hundred forty-eight thousand, six hundred ninety-one".