16947278241 has 4 divisors (see below), whose sum is σ = 22596370992. Its totient is φ = 11298185492.

The previous prime is 16947278203. The next prime is 16947278261. The reversal of 16947278241 is 14287274961.

16947278241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16947278241 - 2⁷ = 16947278113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16947278261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2824546371 + ... + 2824546376.

It is an arithmetic number, because the mean of its divisors is an integer number (5649092748).

Almost surely, 2^16947278241 is an apocalyptic number.

It is an amenable number.

16947278241 is a deficient number, since it is larger than the sum of its proper divisors (5649092751).

16947278241 is an equidigital number, since it uses as much as digits as its factorization.

16947278241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5649092750.

The product of its digits is 1354752, while the sum is 51.

The spelling of 16947278241 in words is "sixteen billion, nine hundred forty-seven million, two hundred seventy-eight thousand, two hundred forty-one".