5178817060873 has 2 divisors, whose sum is σ = 5178817060874. Its totient is φ = 5178817060872.

The previous prime is 5178817060861. The next prime is 5178817060889. The reversal of 5178817060873 is 3780607188715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4692543747984 + 486273312889 = 2166228^2 + 697333^2 .

It is a cyclic number.

It is not a de Polignac number, because 5178817060873 - 2¹⁷ = 5178816929801 is a prime.

It is a super-2 number, since 2×5178817060873² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5178817060673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2589408530436 + 2589408530437.

It is an arithmetic number, because the mean of its divisors is an integer number (2589408530437).

Almost surely, 2^{5178817060873} is an apocalyptic number.

It is an amenable number.

5178817060873 is a deficient number, since it is larger than the sum of its proper divisors (1).

5178817060873 is an equidigital number, since it uses as much as digits as its factorization.

5178817060873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15805440, while the sum is 61.

The spelling of 5178817060873 in words is "five trillion, one hundred seventy-eight billion, eight hundred seventeen million, sixty thousand, eight hundred seventy-three".