28173048693241 has 3 divisors (see below), whose sum is σ = 28173054001071. Its totient is φ = 28173043385412.

The previous prime is 28173048693199. The next prime is 28173048693247. The reversal of 28173048693241 is 14239684037182.

The square root of 28173048693241 is 5307829.

It is a perfect power (a square), and thus also a powerful number.

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.

It can be written as a sum of positive squares in only one way, i.e., 27313385940841 + 859662752400 = 5226221^2 + 927180^2 .

It is not a de Polignac number, because 28173048693241 - 2⁷ = 28173048693113 is a prime.

It is a super-3 number, since 3×28173048693241³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28173048693247) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2653915 + ... + 7961743.

It is an arithmetic number, because the mean of its divisors is an integer number (9391018000357).

Almost surely, 2^{28173048693241} is an apocalyptic number.

28173048693241 is the 5307829-th square number.

28173048693241 is the 2653915-th centered octagonal number.

It is an amenable number.

28173048693241 is a deficient number, since it is larger than the sum of its proper divisors (5307830).

28173048693241 is an frugal number, since it uses more digits than its factorization.

28173048693241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10615658 (or 5307829 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 28173048693241 in words is "twenty-eight trillion, one hundred seventy-three billion, forty-eight million, six hundred ninety-three thousand, two hundred forty-one".