256273265170 has 32 divisors (see below), whose sum is σ = 496847539440. Its totient is φ = 94610323200.

The previous prime is 256273265119. The next prime is 256273265173. The reversal of 256273265170 is 71562372652.

256273265170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 97768157041 + 158505108129 = 312679^2 + 398127^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 256273265170.

It is not an unprimeable number, because it can be changed into a prime (256273265173) 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 15 ways as a sum of consecutive naturals, for example, 785520 + ... + 1062820.

Almost surely, 2^256273265170 is an apocalyptic number.

256273265170 is a deficient number, since it is larger than the sum of its proper divisors (240574274270).

256273265170 is a wasteful number, since it uses less digits than its factorization.

256273265170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284430.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 256273265170 in words is "two hundred fifty-six billion, two hundred seventy-three million, two hundred sixty-five thousand, one hundred seventy".