159727334969 has 2 divisors, whose sum is σ = 159727334970. Its totient is φ = 159727334968.

The previous prime is 159727334957. The next prime is 159727334971. The reversal of 159727334969 is 969433727951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146459290000 + 13268044969 = 382700^2 + 115187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159727334969 is a prime.

It is a super-2 number, since 2×159727334969² (a number of 23 digits) contains 22 as substring.

Together with 159727334971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (159727334909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79863667484 + 79863667485.

It is an arithmetic number, because the mean of its divisors is an integer number (79863667485).

Almost surely, 2^159727334969 is an apocalyptic number.

It is an amenable number.

159727334969 is a deficient number, since it is larger than the sum of its proper divisors (1).

159727334969 is an equidigital number, since it uses as much as digits as its factorization.

159727334969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77157360, while the sum is 65.

The spelling of 159727334969 in words is "one hundred fifty-nine billion, seven hundred twenty-seven million, three hundred thirty-four thousand, nine hundred sixty-nine".