28300269989 has 2 divisors, whose sum is σ = 28300269990. Its totient is φ = 28300269988.

The previous prime is 28300269961. The next prime is 28300269997. The reversal of 28300269989 is 98996200382.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27694617889 + 605652100 = 166417^2 + 24610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28300269989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28300269919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14150134994 + 14150134995.

It is an arithmetic number, because the mean of its divisors is an integer number (14150134995).

Almost surely, 2^28300269989 is an apocalyptic number.

It is an amenable number.

28300269989 is a deficient number, since it is larger than the sum of its proper divisors (1).

28300269989 is an equidigital number, since it uses as much as digits as its factorization.

28300269989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 28300269989 in words is "twenty-eight billion, three hundred million, two hundred sixty-nine thousand, nine hundred eighty-nine".