256325659238 has 12 divisors (see below), whose sum is σ = 422619579060. Its totient is φ = 116511663180.

The previous prime is 256325659237. The next prime is 256325659259. The reversal of 256325659238 is 832956523652.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256325659237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 529598228 + ... + 529598711.

It is an arithmetic number, because the mean of its divisors is an integer number (35218298255).

Almost surely, 2^256325659238 is an apocalyptic number.

256325659238 is a deficient number, since it is larger than the sum of its proper divisors (166293919822).

256325659238 is a wasteful number, since it uses less digits than its factorization.

256325659238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059196963 (or 1059196952 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 56.

The spelling of 256325659238 in words is "two hundred fifty-six billion, three hundred twenty-five million, six hundred fifty-nine thousand, two hundred thirty-eight".