17830945745 has 8 divisors (see below), whose sum is σ = 21637552680. Its totient is φ = 14104478080.

The previous prime is 17830945739. The next prime is 17830945747. The reversal of 17830945745 is 54754903871.

It can be written as a sum of positive squares in 4 ways, for example, as 2337915904 + 15493029841 = 48352^2 + 124471^2 .

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

It is not a de Polignac number, because 17830945745 - 2¹² = 17830941649 is a prime.

It is a super-2 number, since 2×17830945745² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (17830945747) 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, 20034326 + ... + 20035215.

It is an arithmetic number, because the mean of its divisors is an integer number (2704694085).

Almost surely, 2^17830945745 is an apocalyptic number.

It is an amenable number.

17830945745 is a deficient number, since it is larger than the sum of its proper divisors (3806606935).

17830945745 is an equidigital number, since it uses as much as digits as its factorization.

17830945745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40069635.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 17830945745 in words is "seventeen billion, eight hundred thirty million, nine hundred forty-five thousand, seven hundred forty-five".