168589932769 has 2 divisors, whose sum is σ = 168589932770. Its totient is φ = 168589932768.

The previous prime is 168589932767. The next prime is 168589932829. The reversal of 168589932769 is 967239985861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96433228369 + 72156704400 = 310537^2 + 268620^2 .

It is a cyclic number.

It is not a de Polignac number, because 168589932769 - 2¹ = 168589932767 is a prime.

It is a super-2 number, since 2×168589932769² (a number of 23 digits) contains 22 as substring.

Together with 168589932767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (168589932767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84294966384 + 84294966385.

It is an arithmetic number, because the mean of its divisors is an integer number (84294966385).

Almost surely, 2^168589932769 is an apocalyptic number.

It is an amenable number.

168589932769 is a deficient number, since it is larger than the sum of its proper divisors (1).

168589932769 is an equidigital number, since it uses as much as digits as its factorization.

168589932769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352719360, while the sum is 73.

The spelling of 168589932769 in words is "one hundred sixty-eight billion, five hundred eighty-nine million, nine hundred thirty-two thousand, seven hundred sixty-nine".