8545190561 has 2 divisors, whose sum is σ = 8545190562. Its totient is φ = 8545190560.

The previous prime is 8545190557. The next prime is 8545190593. The reversal of 8545190561 is 1650915458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8183011600 + 362178961 = 90460^2 + 19031^2 .

It is a cyclic number.

It is not a de Polignac number, because 8545190561 - 2² = 8545190557 is a prime.

It is not a weakly prime, because it can be changed into another prime (8545190501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4272595280 + 4272595281.

It is an arithmetic number, because the mean of its divisors is an integer number (4272595281).

Almost surely, 2^8545190561 is an apocalyptic number.

It is an amenable number.

8545190561 is a deficient number, since it is larger than the sum of its proper divisors (1).

8545190561 is an equidigital number, since it uses as much as digits as its factorization.

8545190561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 44.

The square root of 8545190561 is about 92440.1999186501. The cubic root of 8545190561 is about 2044.4378718118.

The spelling of 8545190561 in words is "eight billion, five hundred forty-five million, one hundred ninety thousand, five hundred sixty-one".