5680871321 has 2 divisors, whose sum is σ = 5680871322. Its totient is φ = 5680871320.

The previous prime is 5680871311. The next prime is 5680871323. The reversal of 5680871321 is 1231780865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2980614025 + 2700257296 = 54595^2 + 51964^2 .

It is a cyclic number.

It is not a de Polignac number, because 5680871321 - 2¹⁴ = 5680854937 is a prime.

Together with 5680871323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5680871323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840435660 + 2840435661.

It is an arithmetic number, because the mean of its divisors is an integer number (2840435661).

Almost surely, 2^5680871321 is an apocalyptic number.

It is an amenable number.

5680871321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5680871321 is an equidigital number, since it uses as much as digits as its factorization.

5680871321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 5680871321 is about 75371.5551186255. Note that the first 3 decimals coincide. The cubic root of 5680871321 is about 1784.3155105038.

The spelling of 5680871321 in words is "five billion, six hundred eighty million, eight hundred seventy-one thousand, three hundred twenty-one".