18435009260099 has 4 divisors (see below), whose sum is σ = 18737222526720. Its totient is φ = 18132795993480.

The previous prime is 18435009260027. The next prime is 18435009260113. The reversal of 18435009260099 is 99006290053481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18435009260099 - 2¹² = 18435009256003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18435009260009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151106633219 + ... + 151106633340.

It is an arithmetic number, because the mean of its divisors is an integer number (4684305631680).

Almost surely, 2^{18435009260099} is an apocalyptic number.

18435009260099 is a deficient number, since it is larger than the sum of its proper divisors (302213266621).

18435009260099 is an equidigital number, since it uses as much as digits as its factorization.

18435009260099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302213266620.

The product of its (nonzero) digits is 4199040, while the sum is 56.

The spelling of 18435009260099 in words is "eighteen trillion, four hundred thirty-five billion, nine million, two hundred sixty thousand, ninety-nine".