8625664547 has 2 divisors, whose sum is σ = 8625664548. Its totient is φ = 8625664546.

The previous prime is 8625664469. The next prime is 8625664571. The reversal of 8625664547 is 7454665268.

8625664547 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8625664547 - 2¹⁰ = 8625663523 is a prime.

It is not a weakly prime, because it can be changed into another prime (8625664147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4312832273 + 4312832274.

It is an arithmetic number, because the mean of its divisors is an integer number (4312832274).

Almost surely, 2^8625664547 is an apocalyptic number.

8625664547 is a deficient number, since it is larger than the sum of its proper divisors (1).

8625664547 is an equidigital number, since it uses as much as digits as its factorization.

8625664547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9676800, while the sum is 53.

The square root of 8625664547 is about 92874.4558368984. The cubic root of 8625664547 is about 2050.8356337079.

The spelling of 8625664547 in words is "eight billion, six hundred twenty-five million, six hundred sixty-four thousand, five hundred forty-seven".