256744422171304 has 16 divisors (see below), whose sum is σ = 481396003504020. Its totient is φ = 128372154570240.

The previous prime is 256744422171299. The next prime is 256744422171361. The reversal of 256744422171304 is 403171224447652.

It can be written as a sum of positive squares in 2 ways, for example, as 227954737348900 + 28789684822404 = 15098170^2 + 5365602^2 .

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, 17108494 + ... + 28393474.

Almost surely, 2^{256744422171304} is an apocalyptic number.

It is an amenable number.

256744422171304 is a deficient number, since it is larger than the sum of its proper divisors (224651581332716).

256744422171304 is a wasteful number, since it uses less digits than its factorization.

256744422171304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14128860 (or 14128856 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 52.

The spelling of 256744422171304 in words is "two hundred fifty-six trillion, seven hundred forty-four billion, four hundred twenty-two million, one hundred seventy-one thousand, three hundred four".