6471689714257 has 2 divisors, whose sum is σ = 6471689714258. Its totient is φ = 6471689714256.

The previous prime is 6471689714251. The next prime is 6471689714291. The reversal of 6471689714257 is 7524179861746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6462989302081 + 8700412176 = 2542241^2 + 93276^2 .

It is a cyclic number.

It is not a de Polignac number, because 6471689714257 - 2¹⁹ = 6471689189969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6471689714192 and 6471689714201.

It is not a weakly prime, because it can be changed into another prime (6471689714251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3235844857128 + 3235844857129.

It is an arithmetic number, because the mean of its divisors is an integer number (3235844857129).

Almost surely, 2^{6471689714257} is an apocalyptic number.

It is an amenable number.

6471689714257 is a deficient number, since it is larger than the sum of its proper divisors (1).

6471689714257 is an equidigital number, since it uses as much as digits as its factorization.

6471689714257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142248960, while the sum is 67.

The spelling of 6471689714257 in words is "six trillion, four hundred seventy-one billion, six hundred eighty-nine million, seven hundred fourteen thousand, two hundred fifty-seven".