159472487217 has 8 divisors (see below), whose sum is σ = 214735230720. Its totient is φ = 105262367600.

The previous prime is 159472487173. The next prime is 159472487233. The reversal of 159472487217 is 712784274951.

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 159472487217 - 2⁸ = 159472486961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (159472487287) 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, 263155617 + ... + 263156222.

It is an arithmetic number, because the mean of its divisors is an integer number (26841903840).

Almost surely, 2^159472487217 is an apocalyptic number.

It is an amenable number.

159472487217 is a deficient number, since it is larger than the sum of its proper divisors (55262743503).

159472487217 is a wasteful number, since it uses less digits than its factorization.

159472487217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526311943.

The product of its digits is 7902720, while the sum is 57.

The spelling of 159472487217 in words is "one hundred fifty-nine billion, four hundred seventy-two million, four hundred eighty-seven thousand, two hundred seventeen".