256294038929 has 32 divisors (see below), whose sum is σ = 281856153600. Its totient is φ = 232059036672.

The previous prime is 256294038907. The next prime is 256294038971. The reversal of 256294038929 is 929830492652.

256294038929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-256294038929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256294338929) 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 31 ways as a sum of consecutive naturals, for example, 20893652 + ... + 20905914.

It is an arithmetic number, because the mean of its divisors is an integer number (8808004800).

Almost surely, 2^256294038929 is an apocalyptic number.

It is an amenable number.

256294038929 is a deficient number, since it is larger than the sum of its proper divisors (25562114671).

256294038929 is a wasteful number, since it uses less digits than its factorization.

256294038929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12689.

The product of its (nonzero) digits is 16796160, while the sum is 59.

The spelling of 256294038929 in words is "two hundred fifty-six billion, two hundred ninety-four million, thirty-eight thousand, nine hundred twenty-nine".