5171547847 has 2 divisors, whose sum is σ = 5171547848. Its totient is φ = 5171547846.

The previous prime is 5171547841. The next prime is 5171547863. The reversal of 5171547847 is 7487451715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5171547847 - 2³ = 5171547839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5171547847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5171547841) 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, 2585773923 + 2585773924.

It is an arithmetic number, because the mean of its divisors is an integer number (2585773924).

Almost surely, 2^5171547847 is an apocalyptic number.

5171547847 is a deficient number, since it is larger than the sum of its proper divisors (1).

5171547847 is an equidigital number, since it uses as much as digits as its factorization.

5171547847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1097600, while the sum is 49.

The square root of 5171547847 is about 71913.4747248386. The cubic root of 5171547847 is about 1729.3126393836.

The spelling of 5171547847 in words is "five billion, one hundred seventy-one million, five hundred forty-seven thousand, eight hundred forty-seven".