3256435455857 has 2 divisors, whose sum is σ = 3256435455858. Its totient is φ = 3256435455856.

The previous prime is 3256435455829. The next prime is 3256435455883. The reversal of 3256435455857 is 7585545346523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2993882720656 + 262552735201 = 1730284^2 + 512399^2 .

It is an emirp because it is prime and its reverse (7585545346523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3256435455857 - 2²⁴ = 3256418678641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3256435455857.

It is not a weakly prime, because it can be changed into another prime (3256435455887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628217727928 + 1628217727929.

It is an arithmetic number, because the mean of its divisors is an integer number (1628217727929).

Almost surely, 2^{3256435455857} is an apocalyptic number.

It is an amenable number.

3256435455857 is a deficient number, since it is larger than the sum of its proper divisors (1).

3256435455857 is an equidigital number, since it uses as much as digits as its factorization.

3256435455857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400000, while the sum is 62.

The spelling of 3256435455857 in words is "three trillion, two hundred fifty-six billion, four hundred thirty-five million, four hundred fifty-five thousand, eight hundred fifty-seven".