518104055851 has 2 divisors, whose sum is σ = 518104055852. Its totient is φ = 518104055850.

The previous prime is 518104055761. The next prime is 518104055857. The reversal of 518104055851 is 158550401815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 518104055851 - 2⁷ = 518104055723 is a prime.

It is a super-2 number, since 2×518104055851² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 518104055798 and 518104055807.

It is not a weakly prime, because it can be changed into another prime (518104055857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259052027925 + 259052027926.

It is an arithmetic number, because the mean of its divisors is an integer number (259052027926).

Almost surely, 2^518104055851 is an apocalyptic number.

518104055851 is a deficient number, since it is larger than the sum of its proper divisors (1).

518104055851 is an equidigital number, since it uses as much as digits as its factorization.

518104055851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160000, while the sum is 43.

The spelling of 518104055851 in words is "five hundred eighteen billion, one hundred four million, fifty-five thousand, eight hundred fifty-one".