17920318045 has 8 divisors (see below), whose sum is σ = 24576436224. Its totient is φ = 12288218064.

The previous prime is 17920318033. The next prime is 17920318063. The reversal of 17920318045 is 54081302971.

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 17920318045 - 2¹³ = 17920309853 is a prime.

It is a super-2 number, since 2×17920318045² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17920317989 and 17920318007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256004509 + ... + 256004578.

It is an arithmetic number, because the mean of its divisors is an integer number (3072054528).

Almost surely, 2^17920318045 is an apocalyptic number.

It is an amenable number.

17920318045 is a deficient number, since it is larger than the sum of its proper divisors (6656118179).

17920318045 is an equidigital number, since it uses as much as digits as its factorization.

17920318045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512009099.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 17920318045 in words is "seventeen billion, nine hundred twenty million, three hundred eighteen thousand, forty-five".