16947273729 has 8 divisors (see below), whose sum is σ = 22645171072. Its totient is φ = 11273779440.

The previous prime is 16947273709. The next prime is 16947273737. The reversal of 16947273729 is 92737274961.

It is a happy number.

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

It is not a de Polignac number, because 16947273729 - 2⁵ = 16947273697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16947273709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6099142 + ... + 6101919.

It is an arithmetic number, because the mean of its divisors is an integer number (2830646384).

Almost surely, 2^16947273729 is an apocalyptic number.

It is an amenable number.

16947273729 is a deficient number, since it is larger than the sum of its proper divisors (5697897343).

16947273729 is a wasteful number, since it uses less digits than its factorization.

16947273729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12201527.

The product of its digits is 8001504, while the sum is 57.

The spelling of 16947273729 in words is "sixteen billion, nine hundred forty-seven million, two hundred seventy-three thousand, seven hundred twenty-nine".