256311384614 has 8 divisors (see below), whose sum is σ = 384543939240. Its totient is φ = 128130071536.

The previous prime is 256311384601. The next prime is 256311384617. The reversal of 256311384614 is 416483113652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256311384617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12797879 + ... + 12817890.

It is an arithmetic number, because the mean of its divisors is an integer number (48067992405).

Almost surely, 2^256311384614 is an apocalyptic number.

256311384614 is a deficient number, since it is larger than the sum of its proper divisors (128232554626).

256311384614 is a wasteful number, since it uses less digits than its factorization.

256311384614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25620774.

The product of its digits is 414720, while the sum is 44.

The spelling of 256311384614 in words is "two hundred fifty-six billion, three hundred eleven million, three hundred eighty-four thousand, six hundred fourteen".