118097384409 has 27 divisors (see below), whose sum is σ = 180065676063. Its totient is φ = 74575450224.

The previous prime is 118097384359. The next prime is 118097384413. The reversal of 118097384409 is 904483790811.

The square root of 118097384409 is 343653.

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

118097384409 is a `hidden beast` number, since 1 + 1 + 80 + 97 + 38 + 440 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 110392056009 + 7705328400 = 332253^2 + 87780^2 .

It is not a de Polignac number, because 118097384409 - 2²⁷ = 117963166681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118097334409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 19585207 + ... + 19591235.

Almost surely, 2^118097384409 is an apocalyptic number.

118097384409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

118097384409 is the 343653-rd square number.

118097384409 is the 171827-th centered octagonal number.

It is an amenable number.

118097384409 is a deficient number, since it is larger than the sum of its proper divisors (61968291654).

118097384409 is an frugal number, since it uses more digits than its factorization.

118097384409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12102 (or 6051 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 118097384409 in words is "one hundred eighteen billion, ninety-seven million, three hundred eighty-four thousand, four hundred nine".