256383027713 has 2 divisors, whose sum is σ = 256383027714. Its totient is φ = 256383027712.

The previous prime is 256383027683. The next prime is 256383027787. The reversal of 256383027713 is 317720383652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197996521024 + 58386506689 = 444968^2 + 241633^2 .

It is a cyclic number.

It is not a de Polignac number, because 256383027713 - 2¹⁴ = 256383011329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (256323027713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128191513856 + 128191513857.

It is an arithmetic number, because the mean of its divisors is an integer number (128191513857).

Almost surely, 2^256383027713 is an apocalyptic number.

It is an amenable number.

256383027713 is a deficient number, since it is larger than the sum of its proper divisors (1).

256383027713 is an equidigital number, since it uses as much as digits as its factorization.

256383027713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 256383027713 in words is "two hundred fifty-six billion, three hundred eighty-three million, twenty-seven thousand, seven hundred thirteen".