118889449145 has 4 divisors (see below), whose sum is σ = 142667338980. Its totient is φ = 95111559312.

The previous prime is 118889449141. The next prime is 118889449169. The reversal of 118889449145 is 541944988811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52636748329 + 66252700816 = 229427^2 + 257396^2 .

It is a cyclic number.

It is not a de Polignac number, because 118889449145 - 2² = 118889449141 is a prime.

It is a super-2 number, since 2×118889449145² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118889449141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11888944910 + ... + 11888944919.

It is an arithmetic number, because the mean of its divisors is an integer number (35666834745).

Almost surely, 2^118889449145 is an apocalyptic number.

It is an amenable number.

118889449145 is a deficient number, since it is larger than the sum of its proper divisors (23777889835).

118889449145 is an equidigital number, since it uses as much as digits as its factorization.

118889449145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23777889834.

The product of its digits is 13271040, while the sum is 62.

The spelling of 118889449145 in words is "one hundred eighteen billion, eight hundred eighty-nine million, four hundred forty-nine thousand, one hundred forty-five".