115989247417 has 2 divisors, whose sum is σ = 115989247418. Its totient is φ = 115989247416.

The previous prime is 115989247357. The next prime is 115989247441. The reversal of 115989247417 is 714742989511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92774458921 + 23214788496 = 304589^2 + 152364^2 .

It is an emirp because it is prime and its reverse (714742989511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115989247417 is a prime.

It is not a weakly prime, because it can be changed into another prime (115989247817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57994623708 + 57994623709.

It is an arithmetic number, because the mean of its divisors is an integer number (57994623709).

Almost surely, 2^115989247417 is an apocalyptic number.

It is an amenable number.

115989247417 is a deficient number, since it is larger than the sum of its proper divisors (1).

115989247417 is an equidigital number, since it uses as much as digits as its factorization.

115989247417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 58.

The spelling of 115989247417 in words is "one hundred fifteen billion, nine hundred eighty-nine million, two hundred forty-seven thousand, four hundred seventeen".