118678509434 has 16 divisors (see below), whose sum is σ = 188726770176. Its totient is φ = 55873054800.

The previous prime is 118678509361. The next prime is 118678509451. The reversal of 118678509434 is 434905876811.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 118678509434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25864862 + ... + 25869449.

It is an arithmetic number, because the mean of its divisors is an integer number (11795423136).

Almost surely, 2^118678509434 is an apocalyptic number.

118678509434 is a deficient number, since it is larger than the sum of its proper divisors (70048260742).

118678509434 is a wasteful number, since it uses less digits than its factorization.

118678509434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51734381.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 118678509434 in words is "one hundred eighteen billion, six hundred seventy-eight million, five hundred nine thousand, four hundred thirty-four".