28287017453 has 2 divisors, whose sum is σ = 28287017454. Its totient is φ = 28287017452.

The previous prime is 28287017399. The next prime is 28287017477. The reversal of 28287017453 is 35471078282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17983346404 + 10303671049 = 134102^2 + 101507^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28287017453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28287017398 and 28287017407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28287017653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14143508726 + 14143508727.

It is an arithmetic number, because the mean of its divisors is an integer number (14143508727).

Almost surely, 2^28287017453 is an apocalyptic number.

It is an amenable number.

28287017453 is a deficient number, since it is larger than the sum of its proper divisors (1).

28287017453 is an equidigital number, since it uses as much as digits as its factorization.

28287017453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 752640, while the sum is 47.

The spelling of 28287017453 in words is "twenty-eight billion, two hundred eighty-seven million, seventeen thousand, four hundred fifty-three".