865896768 has 168 divisors, whose sum is σ = 2867192640. Its totient is φ = 246927360.

The previous prime is 865896749. The next prime is 865896791. The reversal of 865896768 is 867698568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103693 + ... + 111731.

Almost surely, 2^865896768 is an apocalyptic number.

865896768 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 865896768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433596320).

865896768 is an abundant number, since it is smaller than the sum of its proper divisors (2001295872).

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

865896768 is a wasteful number, since it uses less digits than its factorization.

865896768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8085 (or 8072 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The square root of 865896768 is about 29426.1239037696. The cubic root of 865896768 is about 953.1370966599.

The spelling of 865896768 in words is "eight hundred sixty-five million, eight hundred ninety-six thousand, seven hundred sixty-eight".