256356472623607 has 8 divisors (see below), whose sum is σ = 271461735554976. Its totient is φ = 241254039739392.

The previous prime is 256356472623593. The next prime is 256356472623611. The reversal of 256356472623607 is 706326274653652.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 256356472623607 - 2¹⁹ = 256356472099319 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 (256356472624607) 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, 707325283 + ... + 707687620.

It is an arithmetic number, because the mean of its divisors is an integer number (33932716944372).

Almost surely, 2^{256356472623607} is an apocalyptic number.

256356472623607 is a deficient number, since it is larger than the sum of its proper divisors (15105262931369).

256356472623607 is a wasteful number, since it uses less digits than its factorization.

256356472623607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415023577.

The product of its (nonzero) digits is 457228800, while the sum is 64.

The spelling of 256356472623607 in words is "two hundred fifty-six trillion, three hundred fifty-six billion, four hundred seventy-two million, six hundred twenty-three thousand, six hundred seven".