256605467327 has 8 divisors (see below), whose sum is σ = 292104247680. Its totient is φ = 223135188760.

The previous prime is 256605467303. The next prime is 256605467359. The reversal of 256605467327 is 723764506652.

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

It is not a de Polignac number, because 256605467327 - 2⁸ = 256605467071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256605467927) 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, 507125177 + ... + 507125682.

It is an arithmetic number, because the mean of its divisors is an integer number (36513030960).

Almost surely, 2^256605467327 is an apocalyptic number.

256605467327 is a deficient number, since it is larger than the sum of its proper divisors (35498780353).

256605467327 is a wasteful number, since it uses less digits than its factorization.

256605467327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014250893.

The product of its (nonzero) digits is 12700800, while the sum is 53.

The spelling of 256605467327 in words is "two hundred fifty-six billion, six hundred five million, four hundred sixty-seven thousand, three hundred twenty-seven".