256297943411 has 4 divisors (see below), whose sum is σ = 258649300800. Its totient is φ = 253946586024.

The previous prime is 256297943381. The next prime is 256297943437. The reversal of 256297943411 is 114349792652.

256297943411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256297943411 - 2¹⁰ = 256297942387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256297843411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175678531 + ... + 1175678748.

It is an arithmetic number, because the mean of its divisors is an integer number (64662325200).

Almost surely, 2^256297943411 is an apocalyptic number.

256297943411 is a deficient number, since it is larger than the sum of its proper divisors (2351357389).

256297943411 is a wasteful number, since it uses less digits than its factorization.

256297943411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351357388.

The product of its digits is 3265920, while the sum is 53.

The spelling of 256297943411 in words is "two hundred fifty-six billion, two hundred ninety-seven million, nine hundred forty-three thousand, four hundred eleven".