16488947643 has 32 divisors (see below), whose sum is σ = 25223923200. Its totient is φ = 9385618176.

The previous prime is 16488947633. The next prime is 16488947689. The reversal of 16488947643 is 34674988461.

It is not a de Polignac number, because 16488947643 - 2⁴ = 16488947627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16488947623) 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 31 ways as a sum of consecutive naturals, for example, 9405255 + ... + 9407007.

It is an arithmetic number, because the mean of its divisors is an integer number (788247600).

Almost surely, 2^16488947643 is an apocalyptic number.

16488947643 is a deficient number, since it is larger than the sum of its proper divisors (8734975557).

16488947643 is a wasteful number, since it uses less digits than its factorization.

16488947643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251.

The product of its digits is 27869184, while the sum is 60.

The spelling of 16488947643 in words is "sixteen billion, four hundred eighty-eight million, nine hundred forty-seven thousand, six hundred forty-three".