28254671017 has 2 divisors, whose sum is σ = 28254671018. Its totient is φ = 28254671016.

The previous prime is 28254670999. The next prime is 28254671117. The reversal of 28254671017 is 71017645282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20695411881 + 7559259136 = 143859^2 + 86944^2 .

It is a cyclic number.

It is not a de Polignac number, because 28254671017 - 2⁷ = 28254670889 is a prime.

It is not a weakly prime, because it can be changed into another prime (28254671117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14127335508 + 14127335509.

It is an arithmetic number, because the mean of its divisors is an integer number (14127335509).

Almost surely, 2^28254671017 is an apocalyptic number.

It is an amenable number.

28254671017 is a deficient number, since it is larger than the sum of its proper divisors (1).

28254671017 is an equidigital number, since it uses as much as digits as its factorization.

28254671017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 28254671017 in words is "twenty-eight billion, two hundred fifty-four million, six hundred seventy-one thousand, seventeen".