988708701689 has 2 divisors, whose sum is σ = 988708701690. Its totient is φ = 988708701688.

The previous prime is 988708701683. The next prime is 988708701707. The reversal of 988708701689 is 986107807889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 916499875600 + 72208826089 = 957340^2 + 268717^2 .

It is a cyclic number.

It is not a de Polignac number, because 988708701689 - 2⁸ = 988708701433 is a prime.

It is not a weakly prime, because it can be changed into another prime (988708701683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494354350844 + 494354350845.

It is an arithmetic number, because the mean of its divisors is an integer number (494354350845).

Almost surely, 2^988708701689 is an apocalyptic number.

It is an amenable number.

988708701689 is a deficient number, since it is larger than the sum of its proper divisors (1).

988708701689 is an equidigital number, since it uses as much as digits as its factorization.

988708701689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97542144, while the sum is 71.

The spelling of 988708701689 in words is "nine hundred eighty-eight billion, seven hundred eight million, seven hundred one thousand, six hundred eighty-nine".