118689207169 has 9 divisors (see below), whose sum is σ = 128526299049. Its totient is φ = 109555134000.

The previous prime is 118689207103. The next prime is 118689207179. The reversal of 118689207169 is 961702986811.

The square root of 118689207169 is 344513.

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

It can be written as a sum of positive squares in 4 ways, for example, as 32319050625 + 86370156544 = 179775^2 + 293888^2 .

It is not a de Polignac number, because 118689207169 - 2¹³ = 118689198977 is a prime.

It is a super-2 number, since 2×118689207169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118689207179) 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, 4465419 + ... + 4491919.

Almost surely, 2^118689207169 is an apocalyptic number.

118689207169 is the 344513-rd square number.

118689207169 is the 172257-th centered octagonal number.

It is an amenable number.

118689207169 is a deficient number, since it is larger than the sum of its proper divisors (9837091880).

118689207169 is an frugal number, since it uses more digits than its factorization.

118689207169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53028 (or 26514 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 58.

The spelling of 118689207169 in words is "one hundred eighteen billion, six hundred eighty-nine million, two hundred seven thousand, one hundred sixty-nine".