16971296727 has 16 divisors (see below), whose sum is σ = 28212026112. Its totient is φ = 8816257920.

The previous prime is 16971296711. The next prime is 16971296729. The reversal of 16971296727 is 72769217961.

It is a happy number.

It is not a de Polignac number, because 16971296727 - 2⁴ = 16971296711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16971296729) 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 15 ways as a sum of consecutive naturals, for example, 36734178 + ... + 36734639.

It is an arithmetic number, because the mean of its divisors is an integer number (1763251632).

Almost surely, 2^16971296727 is an apocalyptic number.

16971296727 is a deficient number, since it is larger than the sum of its proper divisors (11240729385).

16971296727 is a wasteful number, since it uses less digits than its factorization.

16971296727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73468838.

The product of its digits is 4000752, while the sum is 57.

The spelling of 16971296727 in words is "sixteen billion, nine hundred seventy-one million, two hundred ninety-six thousand, seven hundred twenty-seven".