28225030808417 has 2 divisors, whose sum is σ = 28225030808418. Its totient is φ = 28225030808416.

The previous prime is 28225030808407. The next prime is 28225030808461. The reversal of 28225030808417 is 71480803052282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28179864357841 + 45166450576 = 5308471^2 + 212524^2 .

It is a cyclic number.

It is not a de Polignac number, because 28225030808417 - 2²⁶ = 28224963699553 is a prime.

It is not a weakly prime, because it can be changed into another prime (28225030808407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14112515404208 + 14112515404209.

It is an arithmetic number, because the mean of its divisors is an integer number (14112515404209).

Almost surely, 2^{28225030808417} is an apocalyptic number.

It is an amenable number.

28225030808417 is a deficient number, since it is larger than the sum of its proper divisors (1).

28225030808417 is an equidigital number, since it uses as much as digits as its factorization.

28225030808417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 28225030808417 in words is "twenty-eight trillion, two hundred twenty-five billion, thirty million, eight hundred eight thousand, four hundred seventeen".