18266742113485 has 16 divisors (see below), whose sum is σ = 22426400908800. Its totient is φ = 14279667457536.

The previous prime is 18266742113467. The next prime is 18266742113497. The reversal of 18266742113485 is 58431124766281.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18266742113485 - 2⁹ = 18266742112973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238337545 + ... + 238414174.

It is an arithmetic number, because the mean of its divisors is an integer number (1401650056800).

Almost surely, 2^{18266742113485} is an apocalyptic number.

It is an amenable number.

18266742113485 is a deficient number, since it is larger than the sum of its proper divisors (4159658795315).

18266742113485 is an equidigital number, since it uses as much as digits as its factorization.

18266742113485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476751900.

The product of its digits is 15482880, while the sum is 58.

The spelling of 18266742113485 in words is "eighteen trillion, two hundred sixty-six billion, seven hundred forty-two million, one hundred thirteen thousand, four hundred eighty-five".