28605776276 has 48 divisors (see below), whose sum is σ = 62680625280. Its totient is φ = 11097246720.

The previous prime is 28605776267. The next prime is 28605776279. The reversal of 28605776276 is 67267750682.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28605776279) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 127541 + ... + 271068.

It is an arithmetic number, because the mean of its divisors is an integer number (1305846360).

Almost surely, 2^28605776276 is an apocalyptic number.

It is an amenable number.

28605776276 is an abundant number, since it is smaller than the sum of its proper divisors (34074849004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28605776276 is a wasteful number, since it uses less digits than its factorization.

28605776276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398864 (or 398862 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 56.

The spelling of 28605776276 in words is "twenty-eight billion, six hundred five million, seven hundred seventy-six thousand, two hundred seventy-six".