118452402636809 has 2 divisors, whose sum is σ = 118452402636810. Its totient is φ = 118452402636808.

The previous prime is 118452402636803. The next prime is 118452402636899. The reversal of 118452402636809 is 908636204254811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115748614374409 + 2703788262400 = 10758653^2 + 1644320^2 .

It is an emirp because it is prime and its reverse (908636204254811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118452402636809 - 2⁴⁴ = 100860216592393 is a prime.

It is not a weakly prime, because it can be changed into another prime (118452402636803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59226201318404 + 59226201318405.

It is an arithmetic number, because the mean of its divisors is an integer number (59226201318405).

Almost surely, 2^{118452402636809} is an apocalyptic number.

It is an amenable number.

118452402636809 is a deficient number, since it is larger than the sum of its proper divisors (1).

118452402636809 is an equidigital number, since it uses as much as digits as its factorization.

118452402636809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 118452402636809 in words is "one hundred eighteen trillion, four hundred fifty-two billion, four hundred two million, six hundred thirty-six thousand, eight hundred nine".