256274103136 has 24 divisors (see below), whose sum is σ = 505056119400. Its totient is φ = 128005882368.

The previous prime is 256274103133. The next prime is 256274103157. The reversal of 256274103136 is 631301472652.

It is a happy number.

256274103136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256274103136² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256274103133) 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, 4067286 + ... + 4129813.

It is an arithmetic number, because the mean of its divisors is an integer number (21044004975).

Almost surely, 2^256274103136 is an apocalyptic number.

It is an amenable number.

256274103136 is a deficient number, since it is larger than the sum of its proper divisors (248782016264).

256274103136 is an equidigital number, since it uses as much as digits as its factorization.

256274103136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8198086 (or 8198078 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

Adding to 256274103136 its reverse (631301472652), we get a palindrome (887575575788).

The spelling of 256274103136 in words is "two hundred fifty-six billion, two hundred seventy-four million, one hundred three thousand, one hundred thirty-six".