17980326309 has 8 divisors (see below), whose sum is σ = 26153201952. Its totient is φ = 10897167440.

The previous prime is 17980326253. The next prime is 17980326311. The reversal of 17980326309 is 90362308971.

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

It is a cyclic number.

It is not a de Polignac number, because 17980326309 - 2¹⁶ = 17980260773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17980826309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272429154 + ... + 272429219.

It is an arithmetic number, because the mean of its divisors is an integer number (3269150244).

Almost surely, 2^17980326309 is an apocalyptic number.

It is an amenable number.

17980326309 is a deficient number, since it is larger than the sum of its proper divisors (8172875643).

17980326309 is a wasteful number, since it uses less digits than its factorization.

17980326309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544858387.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 17980326309 in words is "seventeen billion, nine hundred eighty million, three hundred twenty-six thousand, three hundred nine".