256477074223012 has 12 divisors (see below), whose sum is σ = 448835195776716. Its totient is φ = 128238446858240.

The previous prime is 256477074222979. The next prime is 256477074223033. The reversal of 256477074223012 is 210322470774652.

It can be written as a sum of positive squares in 2 ways, for example, as 233743002286336 + 22734071936676 = 15288656^2 + 4768026^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15954289 + ... + 27703672.

It is an arithmetic number, because the mean of its divisors is an integer number (37402932981393).

Almost surely, 2^{256477074223012} is an apocalyptic number.

It is an amenable number.

256477074223012 is a deficient number, since it is larger than the sum of its proper divisors (192358121553704).

256477074223012 is a wasteful number, since it uses less digits than its factorization.

256477074223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45126638 (or 45126636 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 52.

The spelling of 256477074223012 in words is "two hundred fifty-six trillion, four hundred seventy-seven billion, seventy-four million, two hundred twenty-three thousand, twelve".