8604773856 has 432 divisors, whose sum is σ = 30863903616. Its totient is φ = 2309658624.

The previous prime is 8604773803. The next prime is 8604773857. The reversal of 8604773856 is 6583774068.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×8604773856² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8604773857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15730575 + ... + 15731121.

Almost surely, 2^8604773856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8604773856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15431951808).

8604773856 is an abundant number, since it is smaller than the sum of its proper divisors (22259129760).

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

8604773856 is a wasteful number, since it uses less digits than its factorization.

8604773856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The square root of 8604773856 is about 92761.9202906020. The cubic root of 8604773856 is about 2049.1786402989.

The spelling of 8604773856 in words is "eight billion, six hundred four million, seven hundred seventy-three thousand, eight hundred fifty-six".