985677114209 has 2 divisors, whose sum is σ = 985677114210. Its totient is φ = 985677114208.

The previous prime is 985677114193. The next prime is 985677114211. The reversal of 985677114209 is 902411776589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 835944490000 + 149732624209 = 914300^2 + 386953^2 .

It is an emirp because it is prime and its reverse (902411776589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985677114209 - 2⁴ = 985677114193 is a prime.

Together with 985677114211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (985677114299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492838557104 + 492838557105.

It is an arithmetic number, because the mean of its divisors is an integer number (492838557105).

Almost surely, 2^985677114209 is an apocalyptic number.

It is an amenable number.

985677114209 is a deficient number, since it is larger than the sum of its proper divisors (1).

985677114209 is an equidigital number, since it uses as much as digits as its factorization.

985677114209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 59.

The spelling of 985677114209 in words is "nine hundred eighty-five billion, six hundred seventy-seven million, one hundred fourteen thousand, two hundred nine".