256025791824 has 40 divisors (see below), whose sum is σ = 721527232992. Its totient is φ = 77583573120.

The previous prime is 256025791823. The next prime is 256025791829. The reversal of 256025791824 is 428197520652.

256025791824 is digitally balanced in base 2, 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 (256025791823) 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 7 ways as a sum of consecutive naturals, for example, 242448139 + ... + 242449194.

Almost surely, 2^256025791824 is an apocalyptic number.

256025791824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

256025791824 is an abundant number, since it is smaller than the sum of its proper divisors (465501441168).

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

256025791824 is a wasteful number, since it uses less digits than its factorization.

256025791824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484897355 (or 484897349 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 256025791824 in words is "two hundred fifty-six billion, twenty-five million, seven hundred ninety-one thousand, eight hundred twenty-four".