256859416967 has 2 divisors, whose sum is σ = 256859416968. Its totient is φ = 256859416966.

The previous prime is 256859416909. The next prime is 256859416999. The reversal of 256859416967 is 769614958652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256859416967 - 2¹² = 256859412871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256859416897 and 256859416906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256859416267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128429708483 + 128429708484.

It is an arithmetic number, because the mean of its divisors is an integer number (128429708484).

Almost surely, 2^256859416967 is an apocalyptic number.

256859416967 is a deficient number, since it is larger than the sum of its proper divisors (1).

256859416967 is an equidigital number, since it uses as much as digits as its factorization.

256859416967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 195955200, while the sum is 68.

The spelling of 256859416967 in words is "two hundred fifty-six billion, eight hundred fifty-nine million, four hundred sixteen thousand, nine hundred sixty-seven".