28416248369 has 2 divisors, whose sum is σ = 28416248370. Its totient is φ = 28416248368.

The previous prime is 28416248353. The next prime is 28416248387. The reversal of 28416248369 is 96384261482.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16113001969 + 12303246400 = 126937^2 + 110920^2 .

It is a cyclic number.

It is not a de Polignac number, because 28416248369 - 2⁴ = 28416248353 is a prime.

It is a super-2 number, since 2×28416248369² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28416248369.

It is not a weakly prime, because it can be changed into another prime (28416248309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14208124184 + 14208124185.

It is an arithmetic number, because the mean of its divisors is an integer number (14208124185).

Almost surely, 2^28416248369 is an apocalyptic number.

It is an amenable number.

28416248369 is a deficient number, since it is larger than the sum of its proper divisors (1).

28416248369 is an equidigital number, since it uses as much as digits as its factorization.

28416248369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 53.

The spelling of 28416248369 in words is "twenty-eight billion, four hundred sixteen million, two hundred forty-eight thousand, three hundred sixty-nine".