117397323647 has 4 divisors (see below), whose sum is σ = 117416724600. Its totient is φ = 117377922696.

The previous prime is 117397323607. The next prime is 117397323689. The reversal of 117397323647 is 746323793711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117397323647 - 2⁶ = 117397323583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117397323607) 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, 9691397 + ... + 9703502.

It is an arithmetic number, because the mean of its divisors is an integer number (29354181150).

Almost surely, 2^117397323647 is an apocalyptic number.

117397323647 is a deficient number, since it is larger than the sum of its proper divisors (19400953).

117397323647 is an equidigital number, since it uses as much as digits as its factorization.

117397323647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19400952.

The product of its digits is 4000752, while the sum is 53.

The spelling of 117397323647 in words is "one hundred seventeen billion, three hundred ninety-seven million, three hundred twenty-three thousand, six hundred forty-seven".