28795078788 has 48 divisors (see below), whose sum is σ = 81303755904. Its totient is φ = 7743214080.

The previous prime is 28795078787. The next prime is 28795078799. The reversal of 28795078788 is 88787059782.

It is not an unprimeable number, because it can be changed into a prime (28795078783) 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, 10080883 + ... + 10083738.

It is an arithmetic number, because the mean of its divisors is an integer number (1693828248).

Almost surely, 2^28795078788 is an apocalyptic number.

28795078788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28795078788 is an abundant number, since it is smaller than the sum of its proper divisors (52508677116).

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

28795078788 is a wasteful number, since it uses less digits than its factorization.

28795078788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20164652 (or 20164650 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 69.

The spelling of 28795078788 in words is "twenty-eight billion, seven hundred ninety-five million, seventy-eight thousand, seven hundred eighty-eight".