539593131395917 has 2 divisors, whose sum is σ = 539593131395918. Its totient is φ = 539593131395916.

The previous prime is 539593131395873. The next prime is 539593131396001. The reversal of 539593131395917 is 719593131395935.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417671541236196 + 121921590159721 = 20437014^2 + 11041811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-539593131395917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 539593131395917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (539593131195917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269796565697958 + 269796565697959.

It is an arithmetic number, because the mean of its divisors is an integer number (269796565697959).

Almost surely, 2^{539593131395917} is an apocalyptic number.

It is an amenable number.

539593131395917 is a deficient number, since it is larger than the sum of its proper divisors (1).

539593131395917 is an equidigital number, since it uses as much as digits as its factorization.

539593131395917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 465010875, while the sum is 73.

The spelling of 539593131395917 in words is "five hundred thirty-nine trillion, five hundred ninety-three billion, one hundred thirty-one million, three hundred ninety-five thousand, nine hundred seventeen".