508388659117 has 2 divisors, whose sum is σ = 508388659118. Its totient is φ = 508388659116.

The previous prime is 508388659019. The next prime is 508388659133. The reversal of 508388659117 is 711956883805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463180969476 + 45207689641 = 680574^2 + 212621^2 .

It is a cyclic number.

It is not a de Polignac number, because 508388659117 - 2¹⁹ = 508388134829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (508388659217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254194329558 + 254194329559.

It is an arithmetic number, because the mean of its divisors is an integer number (254194329559).

Almost surely, 2^508388659117 is an apocalyptic number.

It is an amenable number.

508388659117 is a deficient number, since it is larger than the sum of its proper divisors (1).

508388659117 is an equidigital number, since it uses as much as digits as its factorization.

508388659117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14515200, while the sum is 61.

The spelling of 508388659117 in words is "five hundred eight billion, three hundred eighty-eight million, six hundred fifty-nine thousand, one hundred seventeen".