16428480543697 has 8 divisors (see below), whose sum is σ = 17170185853800. Its totient is φ = 15698455632384.

The previous prime is 16428480543611. The next prime is 16428480543719. The reversal of 16428480543697 is 79634508482461.

It can be written as a sum of positive squares in 4 ways, for example, as 34435853761 + 16394044689936 = 185569^2 + 4048956^2 .

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 16428480543697 - 2⁴³ = 7632387521489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16428480243697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2920096822 + ... + 2920102447.

It is an arithmetic number, because the mean of its divisors is an integer number (2146273231725).

It is a 2-persistent number, because it is pandigital, and so is 2⋅16428480543697 = 32856961087394, but 3⋅16428480543697 = 49285441631091 is not.

Almost surely, 2^{16428480543697} is an apocalyptic number.

It is an amenable number.

16428480543697 is a deficient number, since it is larger than the sum of its proper divisors (741705310103).

16428480543697 is an equidigital number, since it uses as much as digits as its factorization.

16428480543697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5840199395.

The product of its (nonzero) digits is 278691840, while the sum is 67.

The spelling of 16428480543697 in words is "sixteen trillion, four hundred twenty-eight billion, four hundred eighty million, five hundred forty-three thousand, six hundred ninety-seven".