28519228448 has 24 divisors (see below), whose sum is σ = 56164706640. Its totient is φ = 14255176000.

The previous prime is 28519228447. The next prime is 28519228471. The reversal of 28519228448 is 84482291582.

It is a self number, because there is not a number n which added to its sum of digits gives 28519228448.

It is not an unprimeable number, because it can be changed into a prime (28519228447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33038 + ... + 241101.

It is an arithmetic number, because the mean of its divisors is an integer number (2340196110).

Almost surely, 2^28519228448 is an apocalyptic number.

It is an amenable number.

28519228448 is a deficient number, since it is larger than the sum of its proper divisors (27645478192).

28519228448 is a wasteful number, since it uses less digits than its factorization.

28519228448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277400 (or 277392 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 53.

The spelling of 28519228448 in words is "twenty-eight billion, five hundred nineteen million, two hundred twenty-eight thousand, four hundred forty-eight".