256424424652 has 24 divisors (see below), whose sum is σ = 491997542400. Its totient is φ = 115970841360.

The previous prime is 256424424643. The next prime is 256424424691.

256424424652 is nontrivially palindromic in base 10.

256424424652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256424424652² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 14634028 + ... + 14651539.

It is an arithmetic number, because the mean of its divisors is an integer number (20499897600).

Almost surely, 2^256424424652 is an apocalyptic number.

256424424652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256424424652 is a deficient number, since it is larger than the sum of its proper divisors (235573117748).

256424424652 is a wasteful number, since it uses less digits than its factorization.

256424424652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29285781 (or 29285779 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 46.

The spelling of 256424424652 in words is "two hundred fifty-six billion, four hundred twenty-four million, four hundred twenty-four thousand, six hundred fifty-two".