28804751860 has 24 divisors (see below), whose sum is σ = 60756464160. Its totient is φ = 11471141664.

The previous prime is 28804751851. The next prime is 28804751861. The reversal of 28804751860 is 6815740882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28804751861) 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 7 ways as a sum of consecutive naturals, for example, 3167790 + ... + 3176869.

It is an arithmetic number, because the mean of its divisors is an integer number (2531519340).

Almost surely, 2^28804751860 is an apocalyptic number.

28804751860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28804751860 is an abundant number, since it is smaller than the sum of its proper divisors (31951712300).

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

28804751860 is a wasteful number, since it uses less digits than its factorization.

28804751860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344895 (or 6344893 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 28804751860 in words is "twenty-eight billion, eight hundred four million, seven hundred fifty-one thousand, eight hundred sixty".