117445346209 has 27 divisors (see below), whose sum is σ = 131796427161. Its totient is φ = 104620371840.

The previous prime is 117445346201. The next prime is 117445346219. The reversal of 117445346209 is 902643544711.

The square root of 117445346209 is 342703.

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 22844811025 + 94600535184 = 151145^2 + 307572^2 .

It is not a de Polignac number, because 117445346209 - 2³ = 117445346201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117445346201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 110692539 + ... + 110693599.

Almost surely, 2^117445346209 is an apocalyptic number.

117445346209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

117445346209 is the 342703-rd square number.

117445346209 is the 171352-nd centered octagonal number.

It is an amenable number.

117445346209 is a deficient number, since it is larger than the sum of its proper divisors (14351080952).

117445346209 is an frugal number, since it uses more digits than its factorization.

117445346209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 117445346209 in words is "one hundred seventeen billion, four hundred forty-five million, three hundred forty-six thousand, two hundred nine".