256907649052235 has 64 divisors (see below), whose sum is σ = 318430170950400. Its totient is φ = 198887270400000.

The previous prime is 256907649052207. The next prime is 256907649052259. The reversal of 256907649052235 is 532250946709652.

It is not a de Polignac number, because 256907649052235 - 2⁸ = 256907649051979 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39836816291 + ... + 39836822739.

It is an arithmetic number, because the mean of its divisors is an integer number (4975471421100).

Almost surely, 2^{256907649052235} is an apocalyptic number.

256907649052235 is a deficient number, since it is larger than the sum of its proper divisors (61522521898165).

256907649052235 is a wasteful number, since it uses less digits than its factorization.

256907649052235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200.

The product of its (nonzero) digits is 244944000, while the sum is 65.

The spelling of 256907649052235 in words is "two hundred fifty-six trillion, nine hundred seven billion, six hundred forty-nine million, fifty-two thousand, two hundred thirty-five".