256512041234 has 8 divisors (see below), whose sum is σ = 407401477308. Its totient is φ = 120711548800.

The previous prime is 256512041207. The next prime is 256512041237. The reversal of 256512041234 is 432140215652.

256512041234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 237902989009 + 18609052225 = 487753^2 + 136415^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 256512041194 and 256512041203.

It is not an unprimeable number, because it can be changed into a prime (256512041237) 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, 3772235867 + ... + 3772235934.

Almost surely, 2^256512041234 is an apocalyptic number.

256512041234 is a deficient number, since it is larger than the sum of its proper divisors (150889436074).

256512041234 is a wasteful number, since it uses less digits than its factorization.

256512041234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7544471820.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 256512041234 its reverse (432140215652), we get a palindrome (688652256886).

The spelling of 256512041234 in words is "two hundred fifty-six billion, five hundred twelve million, forty-one thousand, two hundred thirty-four".