864495594396 has 120 divisors (see below), whose sum is σ = 2592636372480. Its totient is φ = 246059412768.

The previous prime is 864495594383. The next prime is 864495594439. The reversal of 864495594396 is 693495594468.

864495594396 is a `hidden beast` number, since 8 + 6 + 4 + 495 + 5 + 9 + 43 + 96 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 128176 + ... + 1321143.

It is an arithmetic number, because the mean of its divisors is an integer number (21605303104).

Almost surely, 2^864495594396 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 864495594396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296318186240).

864495594396 is an abundant number, since it is smaller than the sum of its proper divisors (1728140778084).

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

864495594396 is a wasteful number, since it uses less digits than its factorization.

864495594396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449605 (or 1449594 counting only the distinct ones).

The product of its digits is 1007769600, while the sum is 72.

Adding to 864495594396 its sum of digits (72), we get a palindrome (864495594468).

The spelling of 864495594396 in words is "eight hundred sixty-four billion, four hundred ninety-five million, five hundred ninety-four thousand, three hundred ninety-six".