18106013709 has 12 divisors (see below), whose sum is σ = 29889292576. Its totient is φ = 10346293512.

The previous prime is 18106013707. The next prime is 18106013719. The reversal of 18106013709 is 90731060181.

18106013709 is a `hidden beast` number, since 1 + 8 + 10 + 601 + 37 + 0 + 9 = 666.

It is not a de Polignac number, because 18106013709 - 2¹ = 18106013707 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18106013707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143698459 + ... + 143698584.

Almost surely, 2^18106013709 is an apocalyptic number.

It is an amenable number.

18106013709 is a deficient number, since it is larger than the sum of its proper divisors (11783278867).

18106013709 is a wasteful number, since it uses less digits than its factorization.

18106013709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287397056 (or 287397053 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The spelling of 18106013709 in words is "eighteen billion, one hundred six million, thirteen thousand, seven hundred nine".