8678657069 has 2 divisors, whose sum is σ = 8678657070. Its totient is φ = 8678657068.

The previous prime is 8678657059. The next prime is 8678657149. The reversal of 8678657069 is 9607568768.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7224150025 + 1454507044 = 84995^2 + 38138^2 .

It is a cyclic number.

It is not a de Polignac number, because 8678657069 - 2²⁸ = 8410221613 is a prime.

It is a super-2 number, since 2×8678657069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8678657059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4339328534 + 4339328535.

It is an arithmetic number, because the mean of its divisors is an integer number (4339328535).

Almost surely, 2^8678657069 is an apocalyptic number.

It is an amenable number.

8678657069 is a deficient number, since it is larger than the sum of its proper divisors (1).

8678657069 is an equidigital number, since it uses as much as digits as its factorization.

8678657069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The square root of 8678657069 is about 93159.3101573858. The cubic root of 8678657069 is about 2055.0268914299.

The spelling of 8678657069 in words is "eight billion, six hundred seventy-eight million, six hundred fifty-seven thousand, sixty-nine".