28006466399 has 2 divisors, whose sum is σ = 28006466400. Its totient is φ = 28006466398.

The previous prime is 28006466381. The next prime is 28006466437. The reversal of 28006466399 is 99366460082.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28006466399 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28006466399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28006466309) 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, 14003233199 + 14003233200.

It is an arithmetic number, because the mean of its divisors is an integer number (14003233200).

Almost surely, 2^28006466399 is an apocalyptic number.

28006466399 is a deficient number, since it is larger than the sum of its proper divisors (1).

28006466399 is an equidigital number, since it uses as much as digits as its factorization.

28006466399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 28006466399 in words is "twenty-eight billion, six million, four hundred sixty-six thousand, three hundred ninety-nine".