117815854436 has 48 divisors (see below), whose sum is σ = 248202514560. Its totient is φ = 47802389760.

The previous prime is 117815854427. The next prime is 117815854447. The reversal of 117815854436 is 634458518711.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 713126 + ... + 862658.

It is an arithmetic number, because the mean of its divisors is an integer number (5170885720).

Almost surely, 2^117815854436 is an apocalyptic number.

It is an amenable number.

117815854436 is an abundant number, since it is smaller than the sum of its proper divisors (130386660124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117815854436 is a wasteful number, since it uses less digits than its factorization.

117815854436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151044 (or 151042 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 53.

The spelling of 117815854436 in words is "one hundred seventeen billion, eight hundred fifteen million, eight hundred fifty-four thousand, four hundred thirty-six".