256383027770 has 8 divisors (see below), whose sum is σ = 461489450004. Its totient is φ = 102553211104.

The previous prime is 256383027713. The next prime is 256383027787. The reversal of 256383027770 is 77720383652.

It can be written as a sum of positive squares in 2 ways, for example, as 221823102361 + 34559925409 = 470981^2 + 185903^2 .

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

It is a Curzon number.

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, 12819151379 + ... + 12819151398.

Almost surely, 2^256383027770 is an apocalyptic number.

256383027770 is a deficient number, since it is larger than the sum of its proper divisors (205106422234).

256383027770 is a wasteful number, since it uses less digits than its factorization.

256383027770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25638302784.

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 256383027770 in words is "two hundred fifty-six billion, three hundred eighty-three million, twenty-seven thousand, seven hundred seventy".