869193317216 has 96 divisors (see below), whose sum is σ = 2055612142080. Its totient is φ = 353714144256.

The previous prime is 869193317191. The next prime is 869193317221. The reversal of 869193317216 is 612713391968.

It is a Harshad number since it is a multiple of its sum of digits (56).

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, 90095 + ... + 1321553.

It is an arithmetic number, because the mean of its divisors is an integer number (21412626480).

Almost surely, 2^869193317216 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 869193317216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1027806071040).

869193317216 is an abundant number, since it is smaller than the sum of its proper divisors (1186418824864).

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

869193317216 is a wasteful number, since it uses less digits than its factorization.

869193317216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231636 (or 1231628 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 56.

The spelling of 869193317216 in words is "eight hundred sixty-nine billion, one hundred ninety-three million, three hundred seventeen thousand, two hundred sixteen".