428111869912 has 16 divisors (see below), whose sum is σ = 802741572360. Its totient is φ = 214047450624.

The previous prime is 428111869909. The next prime is 428111869921. The reversal of 428111869912 is 219968111824.

It is a self number, because there is not a number n which added to its sum of digits gives 428111869912.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 843478 + ... + 1252069.

Almost surely, 2^428111869912 is an apocalyptic number.

It is an amenable number.

428111869912 is a deficient number, since it is larger than the sum of its proper divisors (374629702448).

428111869912 is a wasteful number, since it uses less digits than its factorization.

428111869912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121090 (or 2121086 counting only the distinct ones).

The product of its digits is 497664, while the sum is 52.

The spelling of 428111869912 in words is "four hundred twenty-eight billion, one hundred eleven million, eight hundred sixty-nine thousand, nine hundred twelve".