256786441082 has 8 divisors (see below), whose sum is σ = 385365834900. Its totient is φ = 128331162784.

The previous prime is 256786441019. The next prime is 256786441097. The reversal of 256786441082 is 280144687652.

It is a Cunningham number, because it is equal to 506741²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 256786441081 + 1 = 506741^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 31023707 + ... + 31031982.

Almost surely, 2^256786441082 is an apocalyptic number.

256786441082 is a deficient number, since it is larger than the sum of its proper divisors (128579393818).

256786441082 is a wasteful number, since it uses less digits than its factorization.

256786441082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62057760.

The product of its (nonzero) digits is 5160960, while the sum is 53.

The spelling of 256786441082 in words is "two hundred fifty-six billion, seven hundred eighty-six million, four hundred forty-one thousand, eighty-two".