28892216417 has 2 divisors, whose sum is σ = 28892216418. Its totient is φ = 28892216416.

The previous prime is 28892216413. The next prime is 28892216447. The reversal of 28892216417 is 71461229882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25379994721 + 3512221696 = 159311^2 + 59264^2 .

It is a cyclic number.

It is not a de Polignac number, because 28892216417 - 2² = 28892216413 is a prime.

It is not a weakly prime, because it can be changed into another prime (28892216413) 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, 14446108208 + 14446108209.

It is an arithmetic number, because the mean of its divisors is an integer number (14446108209).

Almost surely, 2^28892216417 is an apocalyptic number.

It is an amenable number.

28892216417 is a deficient number, since it is larger than the sum of its proper divisors (1).

28892216417 is an equidigital number, since it uses as much as digits as its factorization.

28892216417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 50.

The spelling of 28892216417 in words is "twenty-eight billion, eight hundred ninety-two million, two hundred sixteen thousand, four hundred seventeen".