5166717187 has 2 divisors, whose sum is σ = 5166717188. Its totient is φ = 5166717186.

The previous prime is 5166717181. The next prime is 5166717211. The reversal of 5166717187 is 7817176615.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5166717187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5166717187.

It is not a weakly prime, because it can be changed into another prime (5166717181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2583358593 + 2583358594.

It is an arithmetic number, because the mean of its divisors is an integer number (2583358594).

Almost surely, 2^5166717187 is an apocalyptic number.

5166717187 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166717187 is an equidigital number, since it uses as much as digits as its factorization.

5166717187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 49.

The square root of 5166717187 is about 71879.8802656209. The cubic root of 5166717187 is about 1728.7740305687.

The spelling of 5166717187 in words is "five billion, one hundred sixty-six million, seven hundred seventeen thousand, one hundred eighty-seven".