256613023531012 has 12 divisors (see below), whose sum is σ = 449092884977100. Its totient is φ = 128300770680416.

The previous prime is 256613023530959. The next prime is 256613023531061. The reversal of 256613023531012 is 210135320316652.

It can be written as a sum of positive squares in 2 ways, for example, as 125186425878276 + 131426597652736 = 11188674^2 + 11464144^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435170703 + ... + 1435349494.

It is an arithmetic number, because the mean of its divisors is an integer number (37424407081425).

Almost surely, 2^{256613023531012} is an apocalyptic number.

It is an amenable number.

256613023531012 is a deficient number, since it is larger than the sum of its proper divisors (192479861446088).

256613023531012 is a wasteful number, since it uses less digits than its factorization.

256613023531012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870542550 (or 2870542548 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 40.

Adding to 256613023531012 its reverse (210135320316652), we get a palindrome (466748343847664).

The spelling of 256613023531012 in words is "two hundred fifty-six trillion, six hundred thirteen billion, twenty-three million, five hundred thirty-one thousand, twelve".