28001788060 has 24 divisors (see below), whose sum is σ = 59374669536. Its totient is φ = 11091969600.

The previous prime is 28001788037. The next prime is 28001788063. The reversal of 28001788060 is 6088710082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28001788063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6794491 + ... + 6798610.

It is an arithmetic number, because the mean of its divisors is an integer number (2473944564).

Almost surely, 2^28001788060 is an apocalyptic number.

28001788060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28001788060 is an abundant number, since it is smaller than the sum of its proper divisors (31372881476).

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

28001788060 is a wasteful number, since it uses less digits than its factorization.

28001788060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13593213 (or 13593211 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 28001788060 in words is "twenty-eight billion, one million, seven hundred eighty-eight thousand, sixty".