256026040336541 has 2 divisors, whose sum is σ = 256026040336542. Its totient is φ = 256026040336540.

The previous prime is 256026040336513. The next prime is 256026040336571. The reversal of 256026040336541 is 145633040620652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248981448489316 + 7044591847225 = 15779146^2 + 2654165^2 .

It is a cyclic number.

It is not a de Polignac number, because 256026040336541 - 2¹⁸ = 256026040074397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256026040336571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128013020168270 + 128013020168271.

It is an arithmetic number, because the mean of its divisors is an integer number (128013020168271).

Almost surely, 2^{256026040336541} is an apocalyptic number.

It is an amenable number.

256026040336541 is a deficient number, since it is larger than the sum of its proper divisors (1).

256026040336541 is an equidigital number, since it uses as much as digits as its factorization.

256026040336541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 47.

The spelling of 256026040336541 in words is "two hundred fifty-six trillion, twenty-six billion, forty million, three hundred thirty-six thousand, five hundred forty-one".