428666179224 has 64 divisors (see below), whose sum is σ = 1098292335840. Its totient is φ = 139341578240.

The previous prime is 428666179213. The next prime is 428666179229. The reversal of 428666179224 is 422971666824.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428666179229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2140804 + ... + 2332460.

Almost surely, 2^428666179224 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 428666179224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549146167920).

428666179224 is an abundant number, since it is smaller than the sum of its proper divisors (669626156616).

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

428666179224 is a wasteful number, since it uses less digits than its factorization.

428666179224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193980 (or 193976 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 57.

The spelling of 428666179224 in words is "four hundred twenty-eight billion, six hundred sixty-six million, one hundred seventy-nine thousand, two hundred twenty-four".