28554447017 has 2 divisors, whose sum is σ = 28554447018. Its totient is φ = 28554447016.

The previous prime is 28554446981. The next prime is 28554447041. The reversal of 28554447017 is 71074445582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27537411136 + 1017035881 = 165944^2 + 31891^2 .

It is a cyclic number.

It is not a de Polignac number, because 28554447017 - 2⁶ = 28554446953 is a prime.

It is not a weakly prime, because it can be changed into another prime (28554447067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14277223508 + 14277223509.

It is an arithmetic number, because the mean of its divisors is an integer number (14277223509).

Almost surely, 2^28554447017 is an apocalyptic number.

It is an amenable number.

28554447017 is a deficient number, since it is larger than the sum of its proper divisors (1).

28554447017 is an equidigital number, since it uses as much as digits as its factorization.

28554447017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1254400, while the sum is 47.

The spelling of 28554447017 in words is "twenty-eight billion, five hundred fifty-four million, four hundred forty-seven thousand, seventeen".