16947834734447 has 8 divisors (see below), whose sum is σ = 17840467138560. Its totient is φ = 16055266440600.

The previous prime is 16947834734393. The next prime is 16947834734459. The reversal of 16947834734447 is 74443743874961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16947834734447 - 2¹⁴ = 16947834718063 is a prime.

It is a super-2 number, since 2×16947834734447² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16947834734147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15484463 + ... + 16542800.

It is an arithmetic number, because the mean of its divisors is an integer number (2230058392320).

Almost surely, 2^{16947834734447} is an apocalyptic number.

16947834734447 is a deficient number, since it is larger than the sum of its proper divisors (892632404113).

16947834734447 is a wasteful number, since it uses less digits than its factorization.

16947834734447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32055133.

The product of its digits is 1365590016, while the sum is 71.

The spelling of 16947834734447 in words is "sixteen trillion, nine hundred forty-seven billion, eight hundred thirty-four million, seven hundred thirty-four thousand, four hundred forty-seven".