5171008691 has 2 divisors, whose sum is σ = 5171008692. Its totient is φ = 5171008690.

The previous prime is 5171008681. The next prime is 5171008727. The reversal of 5171008691 is 1968001715.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5171008691 is a prime.

It is not a weakly prime, because it can be changed into another prime (5171008621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2585504345 + 2585504346.

It is an arithmetic number, because the mean of its divisors is an integer number (2585504346).

Almost surely, 2^5171008691 is an apocalyptic number.

5171008691 is a deficient number, since it is larger than the sum of its proper divisors (1).

5171008691 is an equidigital number, since it uses as much as digits as its factorization.

5171008691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 5171008691 is about 71909.7259833466. The cubic root of 5171008691 is about 1729.2525412134.

The spelling of 5171008691 in words is "five billion, one hundred seventy-one million, eight thousand, six hundred ninety-one".