118915523138 has 8 divisors (see below), whose sum is σ = 178388201232. Its totient is φ = 59452789396.

The previous prime is 118915523131. The next prime is 118915523159. The reversal of 118915523138 is 831325519811.

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

It is a junction number, because it is equal to n+sod(n) for n = 118915523092 and 118915523101.

It is not an unprimeable number, because it can be changed into a prime (118915523131) 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, 2456120 + ... + 2504067.

It is an arithmetic number, because the mean of its divisors is an integer number (22298525154).

Almost surely, 2^118915523138 is an apocalyptic number.

118915523138 is a deficient number, since it is larger than the sum of its proper divisors (59472678094).

118915523138 is a wasteful number, since it uses less digits than its factorization.

118915523138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972176.

The product of its digits is 259200, while the sum is 47.

The spelling of 118915523138 in words is "one hundred eighteen billion, nine hundred fifteen million, five hundred twenty-three thousand, one hundred thirty-eight".