8561630827 has 2 divisors, whose sum is σ = 8561630828. Its totient is φ = 8561630826.

The previous prime is 8561630807. The next prime is 8561630839. The reversal of 8561630827 is 7280361658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8561630827 - 2¹⁹ = 8561106539 is a prime.

It is not a weakly prime, because it can be changed into another prime (8561630807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4280815413 + 4280815414.

It is an arithmetic number, because the mean of its divisors is an integer number (4280815414).

Almost surely, 2^8561630827 is an apocalyptic number.

8561630827 is a deficient number, since it is larger than the sum of its proper divisors (1).

8561630827 is an equidigital number, since it uses as much as digits as its factorization.

8561630827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 8561630827 is about 92529.0809799816. The cubic root of 8561630827 is about 2045.7481437585.

The spelling of 8561630827 in words is "eight billion, five hundred sixty-one million, six hundred thirty thousand, eight hundred twenty-seven".