16028728887 has 16 divisors (see below), whose sum is σ = 21937934592. Its totient is φ = 10403743680.

The previous prime is 16028728873. The next prime is 16028728913. The reversal of 16028728887 is 78882782061.

It is not a de Polignac number, because 16028728887 - 2¹² = 16028724791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16028728487) 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 15 ways as a sum of consecutive naturals, for example, 73893 + ... + 193694.

It is an arithmetic number, because the mean of its divisors is an integer number (1371120912).

Almost surely, 2^16028728887 is an apocalyptic number.

16028728887 is a deficient number, since it is larger than the sum of its proper divisors (5909205705).

16028728887 is a wasteful number, since it uses less digits than its factorization.

16028728887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268118.

The product of its (nonzero) digits is 4816896, while the sum is 57.

The spelling of 16028728887 in words is "sixteen billion, twenty-eight million, seven hundred twenty-eight thousand, eight hundred eighty-seven".