256276521068 has 12 divisors (see below), whose sum is σ = 448866912312. Its totient is φ = 128028831840.

The previous prime is 256276521037. The next prime is 256276521073. The reversal of 256276521068 is 860125672652.

256276521068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 27351905 + ... + 27361272.

It is an arithmetic number, because the mean of its divisors is an integer number (37405576026).

Almost surely, 2^256276521068 is an apocalyptic number.

It is an amenable number.

256276521068 is a deficient number, since it is larger than the sum of its proper divisors (192590391244).

256276521068 is a wasteful number, since it uses less digits than its factorization.

256276521068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54714352 (or 54714350 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 256276521068 in words is "two hundred fifty-six billion, two hundred seventy-six million, five hundred twenty-one thousand, sixty-eight".