256303829776 has 20 divisors (see below), whose sum is σ = 496789226892. Its totient is φ = 128100158336.

The previous prime is 256303829723. The next prime is 256303829827. The reversal of 256303829776 is 677928303652.

It can be written as a sum of positive squares in 2 ways, for example, as 213610352400 + 42693477376 = 462180^2 + 206624^2 .

It is a super-3 number, since 3×256303829776³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256303829776.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3193915 + ... + 3273178.

Almost surely, 2^256303829776 is an apocalyptic number.

It is an amenable number.

256303829776 is a deficient number, since it is larger than the sum of its proper divisors (240485397116).

256303829776 is a wasteful number, since it uses less digits than its factorization.

256303829776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469578 (or 6469572 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 256303829776 in words is "two hundred fifty-six billion, three hundred three million, eight hundred twenty-nine thousand, seven hundred seventy-six".