28300327755780 has 48 divisors (see below), whose sum is σ = 82686175012224. Its totient is φ = 7218634325760.

The previous prime is 28300327755767. The next prime is 28300327755857. The reversal of 28300327755780 is 8755772300382.

It is a self number, because there is not a number n which added to its sum of digits gives 28300327755780.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10253740561 + ... + 10253743320.

It is an arithmetic number, because the mean of its divisors is an integer number (1722628646088).

Almost surely, 2^{28300327755780} is an apocalyptic number.

28300327755780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28300327755780 is an abundant number, since it is smaller than the sum of its proper divisors (54385847256444).

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

28300327755780 is a wasteful number, since it uses less digits than its factorization.

28300327755780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20507483916 (or 20507483914 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 57.

The spelling of 28300327755780 in words is "twenty-eight trillion, three hundred billion, three hundred twenty-seven million, seven hundred fifty-five thousand, seven hundred eighty".