3256564807 has 8 divisors (see below), whose sum is σ = 3339151776. Its totient is φ = 3174760992.

The previous prime is 3256564783. The next prime is 3256564813. The reversal of 3256564807 is 7084656523.

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 3256564807 - 2¹⁹ = 3256040519 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 (3256564837) 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, 187363 + ... + 204004.

It is an arithmetic number, because the mean of its divisors is an integer number (417393972).

Almost surely, 2^3256564807 is an apocalyptic number.

3256564807 is a deficient number, since it is larger than the sum of its proper divisors (82586969).

3256564807 is a wasteful number, since it uses less digits than its factorization.

3256564807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391577.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 3256564807 is about 57066.3193749168. The cubic root of 3256564807 is about 1482.2447077860.

The spelling of 3256564807 in words is "three billion, two hundred fifty-six million, five hundred sixty-four thousand, eight hundred seven".