18709093329 has 8 divisors (see below), whose sum is σ = 25246005792. Its totient is φ = 12322454880.

The previous prime is 18709093313. The next prime is 18709093397. The reversal of 18709093329 is 92339090781.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18709093329 - 2⁴ = 18709093313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18709093229) 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 7 ways as a sum of consecutive naturals, for example, 37568212 + ... + 37568709.

It is an arithmetic number, because the mean of its divisors is an integer number (3155750724).

Almost surely, 2^18709093329 is an apocalyptic number.

It is an amenable number.

18709093329 is a deficient number, since it is larger than the sum of its proper divisors (6536912463).

18709093329 is an equidigital number, since it uses as much as digits as its factorization.

18709093329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75137007.

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 18709093329 in words is "eighteen billion, seven hundred nine million, ninety-three thousand, three hundred twenty-nine".