159509679423 has 24 divisors (see below), whose sum is σ = 226014284160. Its totient is φ = 100045418880.

The previous prime is 159509679319. The next prime is 159509679437. The reversal of 159509679423 is 324976905951.

It is not a de Polignac number, because 159509679423 - 2¹⁷ = 159509548351 is a prime.

It is a super-2 number, since 2×159509679423² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159509679463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2270758 + ... + 2339948.

It is an arithmetic number, because the mean of its divisors is an integer number (9417261840).

Almost surely, 2^159509679423 is an apocalyptic number.

159509679423 is a deficient number, since it is larger than the sum of its proper divisors (66504604737).

159509679423 is a wasteful number, since it uses less digits than its factorization.

159509679423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71887 (or 71870 counting only the distinct ones).

The product of its (nonzero) digits is 18370800, while the sum is 60.

The spelling of 159509679423 in words is "one hundred fifty-nine billion, five hundred nine million, six hundred seventy-nine thousand, four hundred twenty-three".