28304819788 has 48 divisors (see below), whose sum is σ = 57105345024. Its totient is φ = 12024673920.

The previous prime is 28304819747. The next prime is 28304819839. The reversal of 28304819788 is 88791840382.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2845183 + ... + 2855113.

It is an arithmetic number, because the mean of its divisors is an integer number (1189694688).

Almost surely, 2^28304819788 is an apocalyptic number.

28304819788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28304819788 is an abundant number, since it is smaller than the sum of its proper divisors (28800525236).

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

28304819788 is a wasteful number, since it uses less digits than its factorization.

28304819788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822 (or 10820 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 58.

The spelling of 28304819788 in words is "twenty-eight billion, three hundred four million, eight hundred nineteen thousand, seven hundred eighty-eight".