5134908715681 has 2 divisors, whose sum is σ = 5134908715682. Its totient is φ = 5134908715680.

The previous prime is 5134908715669. The next prime is 5134908715687. The reversal of 5134908715681 is 1865178094315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2671214328225 + 2463694387456 = 1634385^2 + 1569616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5134908715681 is a prime.

It is a super-2 number, since 2×5134908715681² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5134908715687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2567454357840 + 2567454357841.

It is an arithmetic number, because the mean of its divisors is an integer number (2567454357841).

Almost surely, 2^{5134908715681} is an apocalyptic number.

It is an amenable number.

5134908715681 is a deficient number, since it is larger than the sum of its proper divisors (1).

5134908715681 is an equidigital number, since it uses as much as digits as its factorization.

5134908715681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 58.

The spelling of 5134908715681 in words is "five trillion, one hundred thirty-four billion, nine hundred eight million, seven hundred fifteen thousand, six hundred eighty-one".