118642031218 has 8 divisors (see below), whose sum is σ = 179595735660. Its totient is φ = 58776786000.

The previous prime is 118642031213. The next prime is 118642031219. The reversal of 118642031218 is 812130246811.

It can be written as a sum of positive squares in 2 ways, for example, as 110587507209 + 8054524009 = 332547^2 + 89747^2 .

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

It is not an unprimeable number, because it can be changed into a prime (118642031213) 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, 272114533 + ... + 272114968.

Almost surely, 2^118642031218 is an apocalyptic number.

118642031218 is a deficient number, since it is larger than the sum of its proper divisors (60953704442).

118642031218 is a wasteful number, since it uses less digits than its factorization.

118642031218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544229612.

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 118642031218 in words is "one hundred eighteen billion, six hundred forty-two million, thirty-one thousand, two hundred eighteen".