428669066643 has 8 divisors (see below), whose sum is σ = 578793676800. Its totient is φ = 282161917128.

The previous prime is 428669066603. The next prime is 428669066647. The reversal of 428669066643 is 346660966824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 428669066643 - 2²⁶ = 428601957779 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (428669066647) 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 7 ways as a sum of consecutive naturals, for example, 904364883 + ... + 904365356.

It is an arithmetic number, because the mean of its divisors is an integer number (72349209600).

Almost surely, 2^428669066643 is an apocalyptic number.

428669066643 is a deficient number, since it is larger than the sum of its proper divisors (150124610157).

428669066643 is a wasteful number, since it uses less digits than its factorization.

428669066643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808730321.

The product of its (nonzero) digits is 53747712, while the sum is 60.

The spelling of 428669066643 in words is "four hundred twenty-eight billion, six hundred sixty-nine million, sixty-six thousand, six hundred forty-three".