16747969728 has 168 divisors, whose sum is σ = 52333038336. Its totient is φ = 4630417920.

The previous prime is 16747969723. The next prime is 16747969751. The reversal of 16747969728 is 82796974761.

It is a tau number, because it is divible by the number of its divisors (168).

It is not an unprimeable number, because it can be changed into a prime (16747969723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1285101 + ... + 1298067.

Almost surely, 2^16747969728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16747969728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26166519168).

16747969728 is an abundant number, since it is smaller than the sum of its proper divisors (35585068608).

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

16747969728 is a wasteful number, since it uses less digits than its factorization.

16747969728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13051 (or 13010 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 66.

The spelling of 16747969728 in words is "sixteen billion, seven hundred forty-seven million, nine hundred sixty-nine thousand, seven hundred twenty-eight".