256413435363 has 6 divisors (see below), whose sum is σ = 370374962204. Its totient is φ = 170942290236.

The previous prime is 256413435323. The next prime is 256413435379. The reversal of 256413435363 is 363534314652.

256413435363 is a `hidden beast` number, since 2 + 5 + 64 + 13 + 43 + 536 + 3 = 666.

It is not a de Polignac number, because 256413435363 - 2¹⁰ = 256413434339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256413435323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14245190845 + ... + 14245190862.

Almost surely, 2^256413435363 is an apocalyptic number.

256413435363 is a deficient number, since it is larger than the sum of its proper divisors (113961526841).

256413435363 is a wasteful number, since it uses less digits than its factorization.

256413435363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28490381713 (or 28490381710 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 45.

The spelling of 256413435363 in words is "two hundred fifty-six billion, four hundred thirteen million, four hundred thirty-five thousand, three hundred sixty-three".