159729861875 has 10 divisors (see below), whose sum is σ = 199598436180. Its totient is φ = 127783889000.

The previous prime is 159729861857. The next prime is 159729861899. The reversal of 159729861875 is 578168927951.

It is not a de Polignac number, because 159729861875 - 2²² = 159725667571 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 127783265 + ... + 127784514.

It is an arithmetic number, because the mean of its divisors is an integer number (19959843618).

Almost surely, 2^159729861875 is an apocalyptic number.

159729861875 is a deficient number, since it is larger than the sum of its proper divisors (39868574305).

159729861875 is an frugal number, since it uses more digits than its factorization.

159729861875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255567799 (or 255567784 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 68.

The spelling of 159729861875 in words is "one hundred fifty-nine billion, seven hundred twenty-nine million, eight hundred sixty-one thousand, eight hundred seventy-five".