28025773282 has 12 divisors (see below), whose sum is σ = 45521153010. Its totient is φ = 12934972128.

The previous prime is 28025773261. The next prime is 28025773289. The reversal of 28025773282 is 28237752082.

It is a Cunningham number, because it is equal to 167409²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 14130314641 + 13895458641 = 118871^2 + 117879^2 .

It is not an unprimeable number, because it can be changed into a prime (28025773289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41457907 + ... + 41458582.

Almost surely, 2^28025773282 is an apocalyptic number.

28025773282 is a deficient number, since it is larger than the sum of its proper divisors (17495379728).

28025773282 is a wasteful number, since it uses less digits than its factorization.

28025773282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82916517 (or 82916504 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 28025773282 in words is "twenty-eight billion, twenty-five million, seven hundred seventy-three thousand, two hundred eighty-two".