159731774969 has 8 divisors (see below), whose sum is σ = 172279873920. Its totient is φ = 147220967376.

The previous prime is 159731774959. The next prime is 159731775001. The reversal of 159731774969 is 969477137951.

It is a happy number.

159731774969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 159731774969 - 2¹⁶ = 159731709433 is a prime.

It is a super-2 number, since 2×159731774969² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 159731774899 and 159731774908.

It is not an unprimeable number, because it can be changed into a prime (159731774929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9313937 + ... + 9331070.

It is an arithmetic number, because the mean of its divisors is an integer number (21534984240).

Almost surely, 2^159731774969 is an apocalyptic number.

It is an amenable number.

159731774969 is a deficient number, since it is larger than the sum of its proper divisors (12548098951).

159731774969 is a wasteful number, since it uses less digits than its factorization.

159731774969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18645679.

The product of its digits is 90016920, while the sum is 68.

The spelling of 159731774969 in words is "one hundred fifty-nine billion, seven hundred thirty-one million, seven hundred seventy-four thousand, nine hundred sixty-nine".