9868661059 has 2 divisors, whose sum is σ = 9868661060. Its totient is φ = 9868661058.

The previous prime is 9868661057. The next prime is 9868661107. The reversal of 9868661059 is 9501668689.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9868661059 - 2¹ = 9868661057 is a prime.

Together with 9868661057, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 9868660994 and 9868661012.

It is not a weakly prime, because it can be changed into another prime (9868661057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4934330529 + 4934330530.

It is an arithmetic number, because the mean of its divisors is an integer number (4934330530).

Almost surely, 2^9868661059 is an apocalyptic number.

9868661059 is a deficient number, since it is larger than the sum of its proper divisors (1).

9868661059 is an equidigital number, since it uses as much as digits as its factorization.

9868661059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 58.

The square root of 9868661059 is about 99341.1347780968. The cubic root of 9868661059 is about 2144.9610539129.

The spelling of 9868661059 in words is "nine billion, eight hundred sixty-eight million, six hundred sixty-one thousand, fifty-nine".