9712067857 has 2 divisors, whose sum is σ = 9712067858. Its totient is φ = 9712067856.

The previous prime is 9712067843. The next prime is 9712067861. The reversal of 9712067857 is 7587602179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9096581376 + 615486481 = 95376^2 + 24809^2 .

It is an emirp because it is prime and its reverse (7587602179) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9712067857 - 2¹⁵ = 9712035089 is a prime.

It is not a weakly prime, because it can be changed into another prime (9712067557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4856033928 + 4856033929.

It is an arithmetic number, because the mean of its divisors is an integer number (4856033929).

Almost surely, 2^9712067857 is an apocalyptic number.

It is an amenable number.

9712067857 is a deficient number, since it is larger than the sum of its proper divisors (1).

9712067857 is an equidigital number, since it uses as much as digits as its factorization.

9712067857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The square root of 9712067857 is about 98549.8242362715. The cubic root of 9712067857 is about 2133.5552941228. Note that the first 3 decimals are identical.

The spelling of 9712067857 in words is "nine billion, seven hundred twelve million, sixty-seven thousand, eight hundred fifty-seven".