28447119441 has 24 divisors (see below), whose sum is σ = 44444352680. Its totient is φ = 17429458176.

The previous prime is 28447119427. The next prime is 28447119443. The reversal of 28447119441 is 14491174482.

It can be written as a sum of positive squares in 4 ways, for example, as 190854225 + 28256265216 = 13815^2 + 168096^2 .

It is not a de Polignac number, because 28447119441 - 2¹⁰ = 28447118417 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28447119443) 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 23 ways as a sum of consecutive naturals, for example, 504076 + ... + 557661.

Almost surely, 2^28447119441 is an apocalyptic number.

It is an amenable number.

28447119441 is a deficient number, since it is larger than the sum of its proper divisors (15997233239).

28447119441 is a wasteful number, since it uses less digits than its factorization.

28447119441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061985 (or 1061982 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The spelling of 28447119441 in words is "twenty-eight billion, four hundred forty-seven million, one hundred nineteen thousand, four hundred forty-one".