257744672223 has 8 divisors (see below), whose sum is σ = 344319180336. Its totient is φ = 171499972800.

The previous prime is 257744672191. The next prime is 257744672233. The reversal of 257744672223 is 322276447752.

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

It is not a de Polignac number, because 257744672223 - 2⁵ = 257744672191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257744672233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82450348 + ... + 82453473.

It is an arithmetic number, because the mean of its divisors is an integer number (43039897542).

Almost surely, 2^257744672223 is an apocalyptic number.

257744672223 is a deficient number, since it is larger than the sum of its proper divisors (86574508113).

257744672223 is a wasteful number, since it uses less digits than its factorization.

257744672223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164904345.

The product of its digits is 7902720, while the sum is 51.

The spelling of 257744672223 in words is "two hundred fifty-seven billion, seven hundred forty-four million, six hundred seventy-two thousand, two hundred twenty-three".