5118627289781 has 2 divisors, whose sum is σ = 5118627289782. Its totient is φ = 5118627289780.

The previous prime is 5118627289751. The next prime is 5118627289799. The reversal of 5118627289781 is 1879827268115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5053976091025 + 64651198756 = 2248105^2 + 254266^2 .

It is a cyclic number.

It is not a de Polignac number, because 5118627289781 - 2¹⁰ = 5118627288757 is a prime.

It is a super-2 number, since 2×5118627289781² (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 (5118627289751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2559313644890 + 2559313644891.

It is an arithmetic number, because the mean of its divisors is an integer number (2559313644891).

Almost surely, 2^{5118627289781} is an apocalyptic number.

It is an amenable number.

5118627289781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5118627289781 is an equidigital number, since it uses as much as digits as its factorization.

5118627289781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27095040, while the sum is 65.

The spelling of 5118627289781 in words is "five trillion, one hundred eighteen billion, six hundred twenty-seven million, two hundred eighty-nine thousand, seven hundred eighty-one".