118659093809 has 2 divisors, whose sum is σ = 118659093810. Its totient is φ = 118659093808.

The previous prime is 118659093803. The next prime is 118659093887. The reversal of 118659093809 is 908390956811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114902016784 + 3757077025 = 338972^2 + 61295^2 .

It is a cyclic number.

It is not a de Polignac number, because 118659093809 - 2¹² = 118659089713 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (118659093803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59329546904 + 59329546905.

It is an arithmetic number, because the mean of its divisors is an integer number (59329546905).

Almost surely, 2^118659093809 is an apocalyptic number.

It is an amenable number.

118659093809 is a deficient number, since it is larger than the sum of its proper divisors (1).

118659093809 is an equidigital number, since it uses as much as digits as its factorization.

118659093809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 59.

The spelling of 118659093809 in words is "one hundred eighteen billion, six hundred fifty-nine million, ninety-three thousand, eight hundred nine".