5118125777173 has 2 divisors, whose sum is σ = 5118125777174. Its totient is φ = 5118125777172.

The previous prime is 5118125777147. The next prime is 5118125777183. The reversal of 5118125777173 is 3717775218115.

5118125777173 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5032116724644 + 86009052529 = 2243238^2 + 293273^2 .

It is a cyclic number.

It is not a de Polignac number, because 5118125777173 - 2²⁵ = 5118092222741 is a prime.

It is a super-2 number, since 2×5118125777173² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5118125777183) 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, 2559062888586 + 2559062888587.

It is an arithmetic number, because the mean of its divisors is an integer number (2559062888587).

Almost surely, 2^{5118125777173} is an apocalyptic number.

It is an amenable number.

5118125777173 is a deficient number, since it is larger than the sum of its proper divisors (1).

5118125777173 is an equidigital number, since it uses as much as digits as its factorization.

5118125777173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2881200, while the sum is 55.

The spelling of 5118125777173 in words is "five trillion, one hundred eighteen billion, one hundred twenty-five million, seven hundred seventy-seven thousand, one hundred seventy-three".