6518430089 has 2 divisors, whose sum is σ = 6518430090. Its totient is φ = 6518430088.

The previous prime is 6518430053. The next prime is 6518430103. The reversal of 6518430089 is 9800348156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5489624464 + 1028805625 = 74092^2 + 32075^2 .

It is a cyclic number.

It is not a de Polignac number, because 6518430089 - 2²⁰ = 6517381513 is a prime.

It is not a weakly prime, because it can be changed into another prime (6518430689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3259215044 + 3259215045.

It is an arithmetic number, because the mean of its divisors is an integer number (3259215045).

Almost surely, 2^6518430089 is an apocalyptic number.

It is an amenable number.

6518430089 is a deficient number, since it is larger than the sum of its proper divisors (1).

6518430089 is an equidigital number, since it uses as much as digits as its factorization.

6518430089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 6518430089 is about 80736.7951370377. The cubic root of 6518430089 is about 1868.0177732514.

The spelling of 6518430089 in words is "six billion, five hundred eighteen million, four hundred thirty thousand, eighty-nine".