16272827261 has 4 divisors (see below), whose sum is σ = 17230052412. Its totient is φ = 15315602112.

The previous prime is 16272827239. The next prime is 16272827299.

16272827261 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12325218361 + 3947608900 = 111019^2 + 62830^2 .

It is a cyclic number.

It is not a de Polignac number, because 16272827261 - 2¹⁴ = 16272810877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16272824261) 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 3 ways as a sum of consecutive naturals, for example, 478612550 + ... + 478612583.

It is an arithmetic number, because the mean of its divisors is an integer number (4307513103).

Almost surely, 2^16272827261 is an apocalyptic number.

It is an amenable number.

16272827261 is a deficient number, since it is larger than the sum of its proper divisors (957225151).

16272827261 is an equidigital number, since it uses as much as digits as its factorization.

16272827261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957225150.

The product of its digits is 225792, while the sum is 44.

The spelling of 16272827261 in words is "sixteen billion, two hundred seventy-two million, eight hundred twenty-seven thousand, two hundred sixty-one".