256226548012 has 12 divisors (see below), whose sum is σ = 455088943960. Its totient is φ = 126201135456.

The previous prime is 256226548001. The next prime is 256226548013. The reversal of 256226548012 is 210845622652.

It is a happy number.

256226548012 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 2×256226548012² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256226548012.

It is not an unprimeable number, because it can be changed into a prime (256226548013) 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, 478034337 + ... + 478034872.

Almost surely, 2^256226548012 is an apocalyptic number.

It is an amenable number.

256226548012 is a deficient number, since it is larger than the sum of its proper divisors (198862395948).

256226548012 is a wasteful number, since it uses less digits than its factorization.

256226548012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956069280 (or 956069278 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 256226548012 in words is "two hundred fifty-six billion, two hundred twenty-six million, five hundred forty-eight thousand, twelve".