16841272897 has 4 divisors (see below), whose sum is σ = 16841535876. Its totient is φ = 16841009920.

The previous prime is 16841272883. The next prime is 16841272907. The reversal of 16841272897 is 79827214861.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79827214861 = 84787 ⋅941503.

It can be written as a sum of positive squares in 2 ways, for example, as 9918367281 + 6922905616 = 99591^2 + 83204^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16841272897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16841272807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33993 + ... + 186649.

It is an arithmetic number, because the mean of its divisors is an integer number (4210383969).

Almost surely, 2^16841272897 is an apocalyptic number.

It is an amenable number.

16841272897 is a deficient number, since it is larger than the sum of its proper divisors (262979).

16841272897 is a wasteful number, since it uses less digits than its factorization.

16841272897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262978.

The product of its digits is 2709504, while the sum is 55.

The spelling of 16841272897 in words is "sixteen billion, eight hundred forty-one million, two hundred seventy-two thousand, eight hundred ninety-seven".