864448063956 has 72 divisors (see below), whose sum is σ = 2362305589280. Its totient is φ = 265605656256.

The previous prime is 864448063933. The next prime is 864448064017. The reversal of 864448063956 is 659360844468.

864448063956 is a `hidden beast` number, since 8 + 6 + 4 + 4 + 480 + 63 + 95 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 864448063893 and 864448063902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17053246 + ... + 17103861.

Almost surely, 2^864448063956 is an apocalyptic number.

It is an amenable number.

864448063956 is an abundant number, since it is smaller than the sum of its proper divisors (1497857525324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864448063956 is a wasteful number, since it uses less digits than its factorization.

864448063956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34157173 (or 34157168 counting only the distinct ones).

The product of its (nonzero) digits is 119439360, while the sum is 63.

The spelling of 864448063956 in words is "eight hundred sixty-four billion, four hundred forty-eight million, sixty-three thousand, nine hundred fifty-six".