865096531134 has 128 divisors (see below), whose sum is σ = 2048615940096. Its totient is φ = 240809712000.

The previous prime is 865096531093. The next prime is 865096531141. The reversal of 865096531134 is 431135690568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6094432 + ... + 6234764.

It is an arithmetic number, because the mean of its divisors is an integer number (16004812032).

Almost surely, 2^865096531134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 865096531134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1024307970048).

865096531134 is an abundant number, since it is smaller than the sum of its proper divisors (1183519408962).

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

865096531134 is a wasteful number, since it uses less digits than its factorization.

865096531134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140534.

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 865096531134 in words is "eight hundred sixty-five billion, ninety-six million, five hundred thirty-one thousand, one hundred thirty-four".