518104055761 has 2 divisors, whose sum is σ = 518104055762. Its totient is φ = 518104055760.

The previous prime is 518104055759. The next prime is 518104055851. The reversal of 518104055761 is 167550401815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367836185025 + 150267870736 = 606495^2 + 387644^2 .

It is a cyclic number.

It is not a de Polignac number, because 518104055761 - 2¹ = 518104055759 is a prime.

Together with 518104055759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (518104055731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259052027880 + 259052027881.

It is an arithmetic number, because the mean of its divisors is an integer number (259052027881).

Almost surely, 2^518104055761 is an apocalyptic number.

It is an amenable number.

518104055761 is a deficient number, since it is larger than the sum of its proper divisors (1).

518104055761 is an equidigital number, since it uses as much as digits as its factorization.

518104055761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168000, while the sum is 43.

The spelling of 518104055761 in words is "five hundred eighteen billion, one hundred four million, fifty-five thousand, seven hundred sixty-one".