256873667341 has 16 divisors (see below), whose sum is σ = 258875136000. Its totient is φ = 254881686528.

The previous prime is 256873667333. The next prime is 256873667377. The reversal of 256873667341 is 143766378652.

It is a cyclic number.

It is not a de Polignac number, because 256873667341 - 2³ = 256873667333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256873667321) 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 15 ways as a sum of consecutive naturals, for example, 119865316 + ... + 119867458.

It is an arithmetic number, because the mean of its divisors is an integer number (16179696000).

Almost surely, 2^256873667341 is an apocalyptic number.

It is an amenable number.

256873667341 is a deficient number, since it is larger than the sum of its proper divisors (2001468659).

256873667341 is a wasteful number, since it uses less digits than its factorization.

256873667341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948.

The product of its digits is 30481920, while the sum is 58.

The spelling of 256873667341 in words is "two hundred fifty-six billion, eight hundred seventy-three million, six hundred sixty-seven thousand, three hundred forty-one".