13128034767169 has 9 divisors (see below), whose sum is σ = 15271416885987. Its totient is φ = 11252579489424.

The previous prime is 13128034767167. The next prime is 13128034767299. The reversal of 13128034767169 is 96176743082131.

It is a happy number.

The square root of 13128034767169 is 3623263.

It is a perfect power (a square), and thus also a powerful number.

13128034767169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2007143727169 + 11120891040000 = 1416737^2 + 3334800^2 .

It is not a de Polignac number, because 13128034767169 - 2¹ = 13128034767167 is a prime.

It is a super-2 number, since 2×13128034767169² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13128034767167) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 25104037 + ... + 25621645.

It is an arithmetic number, because the mean of its divisors is an integer number (1696824098443).

Almost surely, 2^{13128034767169} is an apocalyptic number.

13128034767169 is the 3623263-rd square number.

13128034767169 is the 1811632-nd centered octagonal number.

It is an amenable number.

13128034767169 is a deficient number, since it is larger than the sum of its proper divisors (2143382118818).

13128034767169 is an frugal number, since it uses more digits than its factorization.

13128034767169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035232 (or 517616 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 13128034767169 in words is "thirteen trillion, one hundred twenty-eight billion, thirty-four million, seven hundred sixty-seven thousand, one hundred sixty-nine".