159728289609 has 32 divisors (see below), whose sum is σ = 248613949440. Its totient is φ = 89317009152.

The previous prime is 159728289607. The next prime is 159728289619. The reversal of 159728289609 is 906982827951.

It is a happy number.

It is not a de Polignac number, because 159728289609 - 2¹ = 159728289607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159728289609.

It is not an unprimeable number, because it can be changed into a prime (159728289607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10315297 + ... + 10330769.

It is an arithmetic number, because the mean of its divisors is an integer number (7769185920).

Almost surely, 2^159728289609 is an apocalyptic number.

It is an amenable number.

159728289609 is a deficient number, since it is larger than the sum of its proper divisors (88885659831).

159728289609 is a wasteful number, since it uses less digits than its factorization.

159728289609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25989.

The product of its (nonzero) digits is 39191040, while the sum is 66.

The spelling of 159728289609 in words is "one hundred fifty-nine billion, seven hundred twenty-eight million, two hundred eighty-nine thousand, six hundred nine".