9345518561 has 2 divisors, whose sum is σ = 9345518562. Its totient is φ = 9345518560.

The previous prime is 9345518489. The next prime is 9345518593. The reversal of 9345518561 is 1658155439.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9095246161 + 250272400 = 95369^2 + 15820^2 .

It is an emirp because it is prime and its reverse (1658155439) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9345518561 is a prime.

It is not a weakly prime, because it can be changed into another prime (9345514561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4672759280 + 4672759281.

It is an arithmetic number, because the mean of its divisors is an integer number (4672759281).

Almost surely, 2^9345518561 is an apocalyptic number.

It is an amenable number.

9345518561 is a deficient number, since it is larger than the sum of its proper divisors (1).

9345518561 is an equidigital number, since it uses as much as digits as its factorization.

9345518561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648000, while the sum is 47.

The square root of 9345518561 is about 96672.2222823082. Note that the first 4 decimals coincide. The cubic root of 9345518561 is about 2106.3690659961.

The spelling of 9345518561 in words is "nine billion, three hundred forty-five million, five hundred eighteen thousand, five hundred sixty-one".