5186660666827 has 2 divisors, whose sum is σ = 5186660666828. Its totient is φ = 5186660666826.

The previous prime is 5186660666773. The next prime is 5186660666843. The reversal of 5186660666827 is 7286660666815.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5186660666827 is a prime.

It is not a weakly prime, because it can be changed into another prime (5186660666227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2593330333413 + 2593330333414.

It is an arithmetic number, because the mean of its divisors is an integer number (2593330333414).

Almost surely, 2^{5186660666827} is an apocalyptic number.

5186660666827 is a deficient number, since it is larger than the sum of its proper divisors (1).

5186660666827 is an equidigital number, since it uses as much as digits as its factorization.

5186660666827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209018880, while the sum is 67.

The spelling of 5186660666827 in words is "five trillion, one hundred eighty-six billion, six hundred sixty million, six hundred sixty-six thousand, eight hundred twenty-seven".