28247861041 has 3 divisors (see below), whose sum is σ = 28248029113. Its totient is φ = 28247692970.

The previous prime is 28247861009. The next prime is 28247861069. The reversal of 28247861041 is 14016874282.

The square root of 28247861041 is 168071.

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 is not a de Polignac number, because 28247861041 - 2⁵ = 28247861009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28247861071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 84036 + ... + 252106.

Almost surely, 2^28247861041 is an apocalyptic number.

28247861041 is the 168071-st square number.

28247861041 is the 84036-th centered octagonal number.

It is an amenable number.

28247861041 is a deficient number, since it is larger than the sum of its proper divisors (168072).

28247861041 is an frugal number, since it uses more digits than its factorization.

28247861041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336142 (or 168071 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 28247861041 in words is "twenty-eight billion, two hundred forty-seven million, eight hundred sixty-one thousand, forty-one".