16728811212 has 48 divisors (see below), whose sum is σ = 41100192000. Its totient is φ = 5281254720.

The previous prime is 16728811171. The next prime is 16728811217. The reversal of 16728811212 is 21211882761.

It is not an unprimeable number, because it can be changed into a prime (16728811217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 983137 + ... + 1000007.

It is an arithmetic number, because the mean of its divisors is an integer number (856254000).

Almost surely, 2^16728811212 is an apocalyptic number.

16728811212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16728811212 is an abundant number, since it is smaller than the sum of its proper divisors (24371380788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16728811212 is a wasteful number, since it uses less digits than its factorization.

16728811212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21246 (or 21244 counting only the distinct ones).

The product of its digits is 21504, while the sum is 39.

The spelling of 16728811212 in words is "sixteen billion, seven hundred twenty-eight million, eight hundred eleven thousand, two hundred twelve".