5671656247 has 2 divisors, whose sum is σ = 5671656248. Its totient is φ = 5671656246.

The previous prime is 5671656217. The next prime is 5671656257. The reversal of 5671656247 is 7426561765.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5671656247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5671656247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5671656217) 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, 2835828123 + 2835828124.

It is an arithmetic number, because the mean of its divisors is an integer number (2835828124).

Almost surely, 2^5671656247 is an apocalyptic number.

5671656247 is a deficient number, since it is larger than the sum of its proper divisors (1).

5671656247 is an equidigital number, since it uses as much as digits as its factorization.

5671656247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116800, while the sum is 49.

The square root of 5671656247 is about 75310.3993283796. The cubic root of 5671656247 is about 1783.3501950794.

The spelling of 5671656247 in words is "five billion, six hundred seventy-one million, six hundred fifty-six thousand, two hundred forty-seven".