118118742209 has 8 divisors (see below), whose sum is σ = 127249740072. Its totient is φ = 108994164480.

The previous prime is 118118742193. The next prime is 118118742229. The reversal of 118118742209 is 902247811811.

It can be written as a sum of positive squares in 4 ways, for example, as 261792400 + 117856949809 = 16180^2 + 343303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118118742209 - 2⁴ = 118118742193 is a prime.

It is a super-2 number, since 2×118118742209² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 118118742209.

It is not an unprimeable number, because it can be changed into a prime (118118742229) 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 7 ways as a sum of consecutive naturals, for example, 1566782 + ... + 1640439.

It is an arithmetic number, because the mean of its divisors is an integer number (15906217509).

Almost surely, 2^118118742209 is an apocalyptic number.

It is an amenable number.

118118742209 is a deficient number, since it is larger than the sum of its proper divisors (9130997863).

118118742209 is a wasteful number, since it uses less digits than its factorization.

118118742209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210067.

The product of its (nonzero) digits is 64512, while the sum is 44.

The spelling of 118118742209 in words is "one hundred eighteen billion, one hundred eighteen million, seven hundred forty-two thousand, two hundred nine".