256832049796 has 81 divisors (see below), whose sum is σ = 533669003301. Its totient is φ = 107835952224.

The previous prime is 256832049767. The next prime is 256832049797. The reversal of 256832049796 is 697940238652.

The square root of 256832049796 is 506786.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 185149484100 + 71682565696 = 430290^2 + 267736^2 .

It is not an unprimeable number, because it can be changed into a prime (256832049797) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 376034871 + ... + 376035553.

Almost surely, 2^256832049796 is an apocalyptic number.

256832049796 is the 506786-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256832049796

256832049796 is an abundant number, since it is smaller than the sum of its proper divisors (276836953505).

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

256832049796 is an frugal number, since it uses more digits than its factorization.

256832049796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 745 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 256832049796 in words is "two hundred fifty-six billion, eight hundred thirty-two million, forty-nine thousand, seven hundred ninety-six".