868614656 has 160 divisors (see below), whose sum is σ = 2168694528. Its totient is φ = 338411520.

The previous prime is 868614653. The next prime is 868614673. The reversal of 868614656 is 656416868.

It is not an unprimeable number, because it can be changed into a prime (868614653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4798886 + ... + 4799066.

Almost surely, 2^868614656 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 868614656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1084347264).

868614656 is an abundant number, since it is smaller than the sum of its proper divisors (1300079872).

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

868614656 is a wasteful number, since it uses less digits than its factorization.

868614656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 306 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 50.

The square root of 868614656 is about 29472.2692712998. The cubic root of 868614656 is about 954.1332947841.

The spelling of 868614656 in words is "eight hundred sixty-eight million, six hundred fourteen thousand, six hundred fifty-six".