540250042069 has 2 divisors, whose sum is σ = 540250042070. Its totient is φ = 540250042068.

The previous prime is 540250042027. The next prime is 540250042127. The reversal of 540250042069 is 960240052045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 537736223025 + 2513819044 = 733305^2 + 50138^2 .

It is a cyclic number.

It is not a de Polignac number, because 540250042069 - 2⁹ = 540250041557 is a prime.

It is a super-2 number, since 2×540250042069² (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 (540250042169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270125021034 + 270125021035.

It is an arithmetic number, because the mean of its divisors is an integer number (270125021035).

Almost surely, 2^540250042069 is an apocalyptic number.

It is an amenable number.

540250042069 is a deficient number, since it is larger than the sum of its proper divisors (1).

540250042069 is an equidigital number, since it uses as much as digits as its factorization.

540250042069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 540250042069 in words is "five hundred forty billion, two hundred fifty million, forty-two thousand, sixty-nine".