517489378607 has 2 divisors, whose sum is σ = 517489378608. Its totient is φ = 517489378606.

The previous prime is 517489378547. The next prime is 517489378621. The reversal of 517489378607 is 706873984715.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-517489378607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517489378697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258744689303 + 258744689304.

It is an arithmetic number, because the mean of its divisors is an integer number (258744689304).

Almost surely, 2^517489378607 is an apocalyptic number.

517489378607 is a deficient number, since it is larger than the sum of its proper divisors (1).

517489378607 is an equidigital number, since it uses as much as digits as its factorization.

517489378607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71124480, while the sum is 65.

The spelling of 517489378607 in words is "five hundred seventeen billion, four hundred eighty-nine million, three hundred seventy-eight thousand, six hundred seven".