2118983086009 has 2 divisors, whose sum is σ = 2118983086010. Its totient is φ = 2118983086008.

The previous prime is 2118983085971. The next prime is 2118983086019. The reversal of 2118983086009 is 9006803898112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2077965495225 + 41017590784 = 1441515^2 + 202528^2 .

It is a cyclic number.

It is not a de Polignac number, because 2118983086009 - 2⁹ = 2118983085497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2118983086019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059491543004 + 1059491543005.

It is an arithmetic number, because the mean of its divisors is an integer number (1059491543005).

Almost surely, 2^{2118983086009} is an apocalyptic number.

It is an amenable number.

2118983086009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118983086009 is an equidigital number, since it uses as much as digits as its factorization.

2118983086009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The spelling of 2118983086009 in words is "two trillion, one hundred eighteen billion, nine hundred eighty-three million, eighty-six thousand, nine".