256966232674 has 4 divisors (see below), whose sum is σ = 385449349014. Its totient is φ = 128483116336.

The previous prime is 256966232639. The next prime is 256966232693. The reversal of 256966232674 is 476232669652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 256954706649 + 11526025 = 506907^2 + 3395^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64241558167 + ... + 64241558170.

Almost surely, 2^256966232674 is an apocalyptic number.

256966232674 is a deficient number, since it is larger than the sum of its proper divisors (128483116340).

256966232674 is a wasteful number, since it uses less digits than its factorization.

256966232674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128483116339.

The product of its digits is 39191040, while the sum is 58.

The spelling of 256966232674 in words is "two hundred fifty-six billion, nine hundred sixty-six million, two hundred thirty-two thousand, six hundred seventy-four".