5166391771 has 2 divisors, whose sum is σ = 5166391772. Its totient is φ = 5166391770.

The previous prime is 5166391757. The next prime is 5166391777. The reversal of 5166391771 is 1771936615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5166391771 - 2¹⁷ = 5166260699 is a prime.

It is not a weakly prime, because it can be changed into another prime (5166391777) 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, 2583195885 + 2583195886.

It is an arithmetic number, because the mean of its divisors is an integer number (2583195886).

Almost surely, 2^5166391771 is an apocalyptic number.

5166391771 is a deficient number, since it is larger than the sum of its proper divisors (1).

5166391771 is an equidigital number, since it uses as much as digits as its factorization.

5166391771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 46.

The square root of 5166391771 is about 71877.6166201969. The cubic root of 5166391771 is about 1728.7377352758.

The spelling of 5166391771 in words is "five billion, one hundred sixty-six million, three hundred ninety-one thousand, seven hundred seventy-one".