8518426573 has 2 divisors, whose sum is σ = 8518426574. Its totient is φ = 8518426572.

The previous prime is 8518426547. The next prime is 8518426583. The reversal of 8518426573 is 3756248158.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8392941769 + 125484804 = 91613^2 + 11202^2 .

It is a cyclic number.

It is not a de Polignac number, because 8518426573 - 2²¹ = 8516329421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8518426523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4259213286 + 4259213287.

It is an arithmetic number, because the mean of its divisors is an integer number (4259213287).

Almost surely, 2^8518426573 is an apocalyptic number.

It is an amenable number.

8518426573 is a deficient number, since it is larger than the sum of its proper divisors (1).

8518426573 is an equidigital number, since it uses as much as digits as its factorization.

8518426573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 49.

The square root of 8518426573 is about 92295.3225954598. The cubic root of 8518426573 is about 2042.3012104262.

The spelling of 8518426573 in words is "eight billion, five hundred eighteen million, four hundred twenty-six thousand, five hundred seventy-three".