256448844652 has 96 divisors (see below), whose sum is σ = 638010293760. Its totient is φ = 86804075520.

The previous prime is 256448844643. The next prime is 256448844667.

256448844652 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×256448844652² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1815702 + ... + 1951837.

It is an arithmetic number, because the mean of its divisors is an integer number (6645940560).

Almost surely, 2^256448844652 is an apocalyptic number.

256448844652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

256448844652 is an abundant number, since it is smaller than the sum of its proper divisors (381561449108).

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

256448844652 is a wasteful number, since it uses less digits than its factorization.

256448844652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767591 (or 3767589 counting only the distinct ones).

The product of its digits is 58982400, while the sum is 58.

The spelling of 256448844652 in words is "two hundred fifty-six billion, four hundred forty-eight million, eight hundred forty-four thousand, six hundred fifty-two".