18435532541099 has 2 divisors, whose sum is σ = 18435532541100. Its totient is φ = 18435532541098.

The previous prime is 18435532541089. The next prime is 18435532541117. The reversal of 18435532541099 is 99014523553481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18435532541099 - 2³² = 18431237573803 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (18435532541089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9217766270549 + 9217766270550.

It is an arithmetic number, because the mean of its divisors is an integer number (9217766270550).

Almost surely, 2^{18435532541099} is an apocalyptic number.

18435532541099 is a deficient number, since it is larger than the sum of its proper divisors (1).

18435532541099 is an equidigital number, since it uses as much as digits as its factorization.

18435532541099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328000, while the sum is 59.

The spelling of 18435532541099 in words is "eighteen trillion, four hundred thirty-five billion, five hundred thirty-two million, five hundred forty-one thousand, ninety-nine".