16728889480 has 16 divisors (see below), whose sum is σ = 37640001420. Its totient is φ = 6691555776.

The previous prime is 16728889477. The next prime is 16728889481. The reversal of 16728889480 is 8498882761.

It can be written as a sum of positive squares in 2 ways, for example, as 15606505476 + 1122384004 = 124926^2 + 33502^2 .

It is not an unprimeable number, because it can be changed into a prime (16728889481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209111079 + ... + 209111158.

Almost surely, 2^16728889480 is an apocalyptic number.

16728889480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16728889480 is an abundant number, since it is smaller than the sum of its proper divisors (20911111940).

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

16728889480 is a wasteful number, since it uses less digits than its factorization.

16728889480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418222248 (or 418222244 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 61.

The spelling of 16728889480 in words is "sixteen billion, seven hundred twenty-eight million, eight hundred eighty-nine thousand, four hundred eighty".