865007203328 has 176 divisors, whose sum is σ = 1841808720000. Its totient is φ = 404902084608.

The previous prime is 865007203283. The next prime is 865007203351. The reversal of 865007203328 is 823302700568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 663857525 + ... + 663858827.

Almost surely, 2^865007203328 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 865007203328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (920904360000).

865007203328 is an abundant number, since it is smaller than the sum of its proper divisors (976801516672).

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

865007203328 is a wasteful number, since it uses less digits than its factorization.

865007203328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 865007203328 in words is "eight hundred sixty-five billion, seven million, two hundred three thousand, three hundred twenty-eight".