8518689983 has 2 divisors, whose sum is σ = 8518689984. Its totient is φ = 8518689982.

The previous prime is 8518689943. The next prime is 8518689997. The reversal of 8518689983 is 3899868158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8518689983 - 2⁸ = 8518689727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8518689943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4259344991 + 4259344992.

It is an arithmetic number, because the mean of its divisors is an integer number (4259344992).

Almost surely, 2^8518689983 is an apocalyptic number.

8518689983 is a deficient number, since it is larger than the sum of its proper divisors (1).

8518689983 is an equidigital number, since it uses as much as digits as its factorization.

8518689983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29859840, while the sum is 65.

The square root of 8518689983 is about 92296.7495798200. The cubic root of 8518689983 is about 2042.3222611454.

The spelling of 8518689983 in words is "eight billion, five hundred eighteen million, six hundred eighty-nine thousand, nine hundred eighty-three".