17945001389 has 8 divisors (see below), whose sum is σ = 21714959808. Its totient is φ = 14476639680.

The previous prime is 17945001353. The next prime is 17945001391. The reversal of 17945001389 is 98310054971.

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

It is a de Polignac number, because none of the positive numbers 2^k-17945001389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17945031389) 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, 75399047 + ... + 75399284.

It is an arithmetic number, because the mean of its divisors is an integer number (2714369976).

Almost surely, 2^17945001389 is an apocalyptic number.

It is an amenable number.

17945001389 is a deficient number, since it is larger than the sum of its proper divisors (3769958419).

17945001389 is a wasteful number, since it uses less digits than its factorization.

17945001389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150798355.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 17945001389 in words is "seventeen billion, nine hundred forty-five million, one thousand, three hundred eighty-nine".