17920379318 has 8 divisors (see below), whose sum is σ = 26882121240. Its totient is φ = 8959672240.

The previous prime is 17920379293. The next prime is 17920379327. The reversal of 17920379318 is 81397302971.

17920379318 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×17920379318² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213863 + ... + 285618.

It is an arithmetic number, because the mean of its divisors is an integer number (3360265155).

Almost surely, 2^17920379318 is an apocalyptic number.

17920379318 is a deficient number, since it is larger than the sum of its proper divisors (8961741922).

17920379318 is a wasteful number, since it uses less digits than its factorization.

17920379318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517422.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 17920379318 in words is "seventeen billion, nine hundred twenty million, three hundred seventy-nine thousand, three hundred eighteen".