539287440766541 has 2 divisors, whose sum is σ = 539287440766542. Its totient is φ = 539287440766540.

The previous prime is 539287440766493. The next prime is 539287440766577. The reversal of 539287440766541 is 145667044782935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308203480275625 + 231083960490916 = 17555725^2 + 15201446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-539287440766541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539287440766441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269643720383270 + 269643720383271.

It is an arithmetic number, because the mean of its divisors is an integer number (269643720383271).

It is a 1-persistent number, because it is pandigital, but 2⋅539287440766541 = 1078574881533082 is not.

Almost surely, 2^{539287440766541} is an apocalyptic number.

It is an amenable number.

539287440766541 is a deficient number, since it is larger than the sum of its proper divisors (1).

539287440766541 is an equidigital number, since it uses as much as digits as its factorization.

539287440766541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1219276800, while the sum is 71.

The spelling of 539287440766541 in words is "five hundred thirty-nine trillion, two hundred eighty-seven billion, four hundred forty million, seven hundred sixty-six thousand, five hundred forty-one".