115989247386 has 12 divisors (see below), whose sum is σ = 251310036042. Its totient is φ = 38663082456.

The previous prime is 115989247357. The next prime is 115989247417. The reversal of 115989247386 is 683742989511.

115989247386 is a `hidden beast` number, since 1 + 1 + 5 + 9 + 8 + 9 + 247 + 386 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94875704361 + 21113543025 = 308019^2 + 145305^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3221923521 + ... + 3221923556.

Almost surely, 2^115989247386 is an apocalyptic number.

115989247386 is an abundant number, since it is smaller than the sum of its proper divisors (135320788656).

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

115989247386 is a wasteful number, since it uses less digits than its factorization.

115989247386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443847085 (or 6443847082 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 115989247386 in words is "one hundred fifteen billion, nine hundred eighty-nine million, two hundred forty-seven thousand, three hundred eighty-six".