256112881534 has 16 divisors (see below), whose sum is σ = 386650535040. Its totient is φ = 127231627680.

The previous prime is 256112881529. The next prime is 256112881537. The reversal of 256112881534 is 435188211652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256112881537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337077 + ... + 791104.

It is an arithmetic number, because the mean of its divisors is an integer number (24165658440).

Almost surely, 2^256112881534 is an apocalyptic number.

256112881534 is a deficient number, since it is larger than the sum of its proper divisors (130537653506).

256112881534 is a wasteful number, since it uses less digits than its factorization.

256112881534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128915.

The product of its digits is 460800, while the sum is 46.

The spelling of 256112881534 in words is "two hundred fifty-six billion, one hundred twelve million, eight hundred eighty-one thousand, five hundred thirty-four".