4518551139617 has 2 divisors, whose sum is σ = 4518551139618. Its totient is φ = 4518551139616.

The previous prime is 4518551139607. The next prime is 4518551139631. The reversal of 4518551139617 is 7169311558154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4164717703696 + 353833435921 = 2040764^2 + 594839^2 .

It is a cyclic number.

It is not a de Polignac number, because 4518551139617 - 2¹⁰ = 4518551138593 is a prime.

It is not a weakly prime, because it can be changed into another prime (4518551139607) 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, 2259275569808 + 2259275569809.

It is an arithmetic number, because the mean of its divisors is an integer number (2259275569809).

Almost surely, 2^{4518551139617} is an apocalyptic number.

It is an amenable number.

4518551139617 is a deficient number, since it is larger than the sum of its proper divisors (1).

4518551139617 is an equidigital number, since it uses as much as digits as its factorization.

4518551139617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 56.

The spelling of 4518551139617 in words is "four trillion, five hundred eighteen billion, five hundred fifty-one million, one hundred thirty-nine thousand, six hundred seventeen".