256574234448 has 160 divisors (see below), whose sum is σ = 868823121920. Its totient is φ = 70942158720.

The previous prime is 256574234429. The next prime is 256574234491. The reversal of 256574234448 is 844432475652.

It is a happy number.

256574234448 is a `hidden beast` number, since 2 + 5 + 6 + 574 + 23 + 4 + 4 + 48 = 666.

256574234448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 256574234394 and 256574234403.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1274740 + ... + 1462227.

It is an arithmetic number, because the mean of its divisors is an integer number (5430144512).

Almost surely, 2^256574234448 is an apocalyptic number.

256574234448 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

256574234448 is an abundant number, since it is smaller than the sum of its proper divisors (612248887472).

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

256574234448 is a wasteful number, since it uses less digits than its factorization.

256574234448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737022 (or 2737010 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 54.

The spelling of 256574234448 in words is "two hundred fifty-six billion, five hundred seventy-four million, two hundred thirty-four thousand, four hundred forty-eight".