864576229256 has 8 divisors (see below), whose sum is σ = 1621080429870. Its totient is φ = 432288114624.

The previous prime is 864576229243. The next prime is 864576229259. The reversal of 864576229256 is 652922675468.

It can be written as a sum of positive squares in only one way, i.e., 849991802500 + 14584426756 = 921950^2 + 120766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (864576229259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54036014321 + ... + 54036014336.

Almost surely, 2^864576229256 is an apocalyptic number.

It is an amenable number.

864576229256 is a deficient number, since it is larger than the sum of its proper divisors (756504200614).

864576229256 is a wasteful number, since it uses less digits than its factorization.

864576229256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108072028663 (or 108072028659 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 62.

The spelling of 864576229256 in words is "eight hundred sixty-four billion, five hundred seventy-six million, two hundred twenty-nine thousand, two hundred fifty-six".