256841000071 has 2 divisors, whose sum is σ = 256841000072. Its totient is φ = 256841000070.

The previous prime is 256840999981. The next prime is 256841000083. The reversal of 256841000071 is 170000148652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256841000071 - 2¹¹ = 256840998023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256841000371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128420500035 + 128420500036.

It is an arithmetic number, because the mean of its divisors is an integer number (128420500036).

Almost surely, 2^256841000071 is an apocalyptic number.

256841000071 is a deficient number, since it is larger than the sum of its proper divisors (1).

256841000071 is an equidigital number, since it uses as much as digits as its factorization.

256841000071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 256841000071 in words is "two hundred fifty-six billion, eight hundred forty-one million, seventy-one", and thus it is an aban number.