28385341800 has 96 divisors (see below), whose sum is σ = 90372861600. Its totient is φ = 7364839680.

The previous prime is 28385341771. The next prime is 28385341801. The reversal of 28385341800 is 814358382.

It is not an unprimeable number, because it can be changed into a prime (28385341801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617110 + ... + 661509.

It is an arithmetic number, because the mean of its divisors is an integer number (941383975).

Almost surely, 2^28385341800 is an apocalyptic number.

28385341800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28385341800 is an abundant number, since it is smaller than the sum of its proper divisors (61987519800).

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

28385341800 is a wasteful number, since it uses less digits than its factorization.

28385341800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278675 (or 1278666 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 28385341800 in words is "twenty-eight billion, three hundred eighty-five million, three hundred forty-one thousand, eight hundred".