428384966512 has 40 divisors (see below), whose sum is σ = 839161459872. Its totient is φ = 211831968000.

The previous prime is 428384966491. The next prime is 428384966519. The reversal of 428384966512 is 215669483824.

It is a happy number.

It is a super-2 number, since 2×428384966512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428384966519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283962 + ... + 1582822.

Almost surely, 2^428384966512 is an apocalyptic number.

It is an amenable number.

428384966512 is a deficient number, since it is larger than the sum of its proper divisors (410776493360).

428384966512 is a wasteful number, since it uses less digits than its factorization.

428384966512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299857 (or 299851 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 58.

The spelling of 428384966512 in words is "four hundred twenty-eight billion, three hundred eighty-four million, nine hundred sixty-six thousand, five hundred twelve".