18089139307 has 4 divisors (see below), whose sum is σ = 18089633016. Its totient is φ = 18088645600.

The previous prime is 18089139293. The next prime is 18089139311. The reversal of 18089139307 is 70393198081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70393198081 = 97 ⋅725703073.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18089139307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18089139707) 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 3 ways as a sum of consecutive naturals, for example, 187069 + ... + 266782.

It is an arithmetic number, because the mean of its divisors is an integer number (4522408254).

Almost surely, 2^18089139307 is an apocalyptic number.

18089139307 is a deficient number, since it is larger than the sum of its proper divisors (493709).

18089139307 is an equidigital number, since it uses as much as digits as its factorization.

18089139307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493708.

The product of its (nonzero) digits is 326592, while the sum is 49.

The spelling of 18089139307 in words is "eighteen billion, eighty-nine million, one hundred thirty-nine thousand, three hundred seven".