28914953654617 has 2 divisors, whose sum is σ = 28914953654618. Its totient is φ = 28914953654616.

The previous prime is 28914953654599. The next prime is 28914953654659. The reversal of 28914953654617 is 71645635941982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22938390675216 + 5976562979401 = 4789404^2 + 2444701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28914953654617 is a prime.

It is not a weakly prime, because it can be changed into another prime (28914953654417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14457476827308 + 14457476827309.

It is an arithmetic number, because the mean of its divisors is an integer number (14457476827309).

Almost surely, 2^{28914953654617} is an apocalyptic number.

It is an amenable number.

28914953654617 is a deficient number, since it is larger than the sum of its proper divisors (1).

28914953654617 is an equidigital number, since it uses as much as digits as its factorization.

28914953654617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 391910400, while the sum is 70.

The spelling of 28914953654617 in words is "twenty-eight trillion, nine hundred fourteen billion, nine hundred fifty-three million, six hundred fifty-four thousand, six hundred seventeen".