866675467472 has 80 divisors (see below), whose sum is σ = 1846847329920. Its totient is φ = 392162918400.

The previous prime is 866675467381. The next prime is 866675467499. The reversal of 866675467472 is 274764576668.

It is a super-2 number, since 2×866675467472² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5239472 + ... + 5402352.

It is an arithmetic number, because the mean of its divisors is an integer number (23085591624).

Almost surely, 2^866675467472 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 866675467472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923423664960).

866675467472 is an abundant number, since it is smaller than the sum of its proper divisors (980171862448).

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

866675467472 is a wasteful number, since it uses less digits than its factorization.

866675467472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163692 (or 163686 counting only the distinct ones).

The product of its digits is 568995840, while the sum is 68.

The spelling of 866675467472 in words is "eight hundred sixty-six billion, six hundred seventy-five million, four hundred sixty-seven thousand, four hundred seventy-two".