865342887084 has 288 divisors, whose sum is σ = 2435605396224. Its totient is φ = 257367559680.

The previous prime is 865342887047. The next prime is 865342887103. The reversal of 865342887084 is 480788243568.

865342887084 is a `hidden beast` number, since 8 + 6 + 53 + 428 + 87 + 0 + 84 = 666.

865342887084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1085749774 + ... + 1085750570.

Almost surely, 2^865342887084 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 865342887084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1217802698112).

865342887084 is an abundant number, since it is smaller than the sum of its proper divisors (1570262509140).

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

865342887084 is a wasteful number, since it uses less digits than its factorization.

865342887084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 82575360, while the sum is 63.

The spelling of 865342887084 in words is "eight hundred sixty-five billion, three hundred forty-two million, eight hundred eighty-seven thousand, eighty-four".