423128816284 has 72 divisors (see below), whose sum is σ = 767110207248. Its totient is φ = 204197959680.

The previous prime is 423128816269. The next prime is 423128816309. The reversal of 423128816284 is 482618821324.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

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 23 ways as a sum of consecutive naturals, for example, 200249212 + ... + 200251324.

It is an arithmetic number, because the mean of its divisors is an integer number (10654308434).

Almost surely, 2^423128816284 is an apocalyptic number.

It is an amenable number.

423128816284 is a deficient number, since it is larger than the sum of its proper divisors (343981390964).

423128816284 is a wasteful number, since it uses less digits than its factorization.

423128816284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515 (or 2466 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 49.

The spelling of 423128816284 in words is "four hundred twenty-three billion, one hundred twenty-eight million, eight hundred sixteen thousand, two hundred eighty-four".