28225634776 has 16 divisors (see below), whose sum is σ = 55224068400. Its totient is φ = 13499216544.

The previous prime is 28225634743. The next prime is 28225634783. The reversal of 28225634776 is 67743652282.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76699911 + ... + 76700278.

It is an arithmetic number, because the mean of its divisors is an integer number (3451504275).

Almost surely, 2^28225634776 is an apocalyptic number.

It is an amenable number.

28225634776 is a deficient number, since it is larger than the sum of its proper divisors (26998433624).

28225634776 is a wasteful number, since it uses less digits than its factorization.

28225634776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153400218 (or 153400214 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 52.

The spelling of 28225634776 in words is "twenty-eight billion, two hundred twenty-five million, six hundred thirty-four thousand, seven hundred seventy-six".