540009090469 has 2 divisors, whose sum is σ = 540009090470. Its totient is φ = 540009090468.

The previous prime is 540009090443. The next prime is 540009090497. The reversal of 540009090469 is 964090900045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 539012930625 + 996159844 = 734175^2 + 31562^2 .

It is a cyclic number.

It is not a de Polignac number, because 540009090469 - 2²³ = 540000701861 is a prime.

It is a super-2 number, since 2×540009090469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540009090869) 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, 270004545234 + 270004545235.

It is an arithmetic number, because the mean of its divisors is an integer number (270004545235).

Almost surely, 2^540009090469 is an apocalyptic number.

It is an amenable number.

540009090469 is a deficient number, since it is larger than the sum of its proper divisors (1).

540009090469 is an equidigital number, since it uses as much as digits as its factorization.

540009090469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 540009090469 in words is "five hundred forty billion, nine million, ninety thousand, four hundred sixty-nine".