868678528 has 64 divisors (see below), whose sum is σ = 1848240000. Its totient is φ = 405780480.

The previous prime is 868678519. The next prime is 868678541. The reversal of 868678528 is 825876868.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111298 + ... + 118846.

It is an arithmetic number, because the mean of its divisors is an integer number (28878750).

Almost surely, 2^868678528 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 868678528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924120000).

868678528 is an abundant number, since it is smaller than the sum of its proper divisors (979561472).

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

868678528 is a wasteful number, since it uses less digits than its factorization.

868678528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623 (or 7611 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 58.

The square root of 868678528 is about 29473.3528462576. The cubic root of 868678528 is about 954.1566810301.

The spelling of 868678528 in words is "eight hundred sixty-eight million, six hundred seventy-eight thousand, five hundred twenty-eight".