256295444628 has 48 divisors (see below), whose sum is σ = 618248261120. Its totient is φ = 82550793600.

The previous prime is 256295444627. The next prime is 256295444723. The reversal of 256295444628 is 826444592652.

256295444628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256295444627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275263 + ... + 767046.

Almost surely, 2^256295444628 is an apocalyptic number.

It is an amenable number.

256295444628 is an abundant number, since it is smaller than the sum of its proper divisors (361952816492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256295444628 is a wasteful number, since it uses less digits than its factorization.

256295444628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043008 (or 1043006 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 57.

The spelling of 256295444628 in words is "two hundred fifty-six billion, two hundred ninety-five million, four hundred forty-four thousand, six hundred twenty-eight".