5166517597847 has 2 divisors, whose sum is σ = 5166517597848. Its totient is φ = 5166517597846.

The previous prime is 5166517597799. The next prime is 5166517597951. The reversal of 5166517597847 is 7487957156615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5166517597847 - 2²⁸ = 5166249162391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5166517591847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583258798923 + 2583258798924.

It is an arithmetic number, because the mean of its divisors is an integer number (2583258798924).

Almost surely, 2^{5166517597847} is an apocalyptic number.

5166517597847 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166517597847 is an equidigital number, since it uses as much as digits as its factorization.

5166517597847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528000, while the sum is 71.

The spelling of 5166517597847 in words is "five trillion, one hundred sixty-six billion, five hundred seventeen million, five hundred ninety-seven thousand, eight hundred forty-seven".