16725623273 has 4 divisors (see below), whose sum is σ = 16726155588. Its totient is φ = 16725090960.

The previous prime is 16725623251. The next prime is 16725623279. The reversal of 16725623273 is 37232652761.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37232652761 = 353 ⋅105474937.

It can be written as a sum of positive squares in 2 ways, for example, as 11759884249 + 4965739024 = 108443^2 + 70468^2 .

It is a cyclic number.

It is not a de Polignac number, because 16725623273 - 2¹⁸ = 16725361129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16725623279) 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, 215858 + ... + 282923.

It is an arithmetic number, because the mean of its divisors is an integer number (4181538897).

Almost surely, 2^16725623273 is an apocalyptic number.

It is an amenable number.

16725623273 is a deficient number, since it is larger than the sum of its proper divisors (532315).

16725623273 is an equidigital number, since it uses as much as digits as its factorization.

16725623273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532314.

The product of its digits is 635040, while the sum is 44.

The spelling of 16725623273 in words is "sixteen billion, seven hundred twenty-five million, six hundred twenty-three thousand, two hundred seventy-three".