28868304120 has 64 divisors (see below), whose sum is σ = 86854619520. Its totient is φ = 7676018304.

The previous prime is 28868304103. The next prime is 28868304121. The reversal of 28868304120 is 2140386882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28868304121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305002 + ... + 388281.

It is an arithmetic number, because the mean of its divisors is an integer number (1357103430).

Almost surely, 2^28868304120 is an apocalyptic number.

28868304120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28868304120 is an abundant number, since it is smaller than the sum of its proper divisors (57986315400).

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

28868304120 is a wasteful number, since it uses less digits than its factorization.

28868304120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693644 (or 693640 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 28868304120 in words is "twenty-eight billion, eight hundred sixty-eight million, three hundred four thousand, one hundred twenty".