16431228628 has 12 divisors (see below), whose sum is σ = 29423363200. Its totient is φ = 8024553432.

The previous prime is 16431228617. The next prime is 16431228691. The reversal of 16431228628 is 82682213461.

It is a happy number.

16431228628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (43).

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 3 ways as a sum of consecutive naturals, for example, 47765028 + ... + 47765371.

Almost surely, 2^16431228628 is an apocalyptic number.

It is an amenable number.

16431228628 is a deficient number, since it is larger than the sum of its proper divisors (12992134572).

16431228628 is a wasteful number, since it uses less digits than its factorization.

16431228628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95530446 (or 95530444 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The spelling of 16431228628 in words is "sixteen billion, four hundred thirty-one million, two hundred twenty-eight thousand, six hundred twenty-eight".