5156640727873 has 2 divisors, whose sum is σ = 5156640727874. Its totient is φ = 5156640727872.

The previous prime is 5156640727841. The next prime is 5156640727919. The reversal of 5156640727873 is 3787270466515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3982068142144 + 1174572585729 = 1995512^2 + 1083777^2 .

It is a cyclic number.

It is not a de Polignac number, because 5156640727873 - 2⁵ = 5156640727841 is a prime.

It is not a weakly prime, because it can be changed into another prime (5156640722873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578320363936 + 2578320363937.

It is an arithmetic number, because the mean of its divisors is an integer number (2578320363937).

Almost surely, 2^{5156640727873} is an apocalyptic number.

It is an amenable number.

5156640727873 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156640727873 is an equidigital number, since it uses as much as digits as its factorization.

5156640727873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59270400, while the sum is 61.

The spelling of 5156640727873 in words is "five trillion, one hundred fifty-six billion, six hundred forty million, seven hundred twenty-seven thousand, eight hundred seventy-three".