16731472347 has 10 divisors (see below), whose sum is σ = 24993927948. Its totient is φ = 11154314844.

The previous prime is 16731472327. The next prime is 16731472357. The reversal of 16731472347 is 74327413761.

It is a happy number.

16731472347 is a `hidden beast` number, since 167 + 3 + 147 + 2 + 347 = 666.

16731472347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16731472347 - 2¹¹ = 16731470299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16731472327) 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 9 ways as a sum of consecutive naturals, for example, 103280613 + ... + 103280774.

Almost surely, 2^16731472347 is an apocalyptic number.

16731472347 is a deficient number, since it is larger than the sum of its proper divisors (8262455601).

16731472347 is an equidigital number, since it uses as much as digits as its factorization.

16731472347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206561399 (or 206561390 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The spelling of 16731472347 in words is "sixteen billion, seven hundred thirty-one million, four hundred seventy-two thousand, three hundred forty-seven".