117755188247 has 4 divisors (see below), whose sum is σ = 117798151656. Its totient is φ = 117712224840.

The previous prime is 117755188211. The next prime is 117755188249. The reversal of 117755188247 is 742881557711.

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 117755188247 - 2²⁴ = 117738411031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117755188192 and 117755188201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117755188249) 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, 21477593 + ... + 21483074.

It is an arithmetic number, because the mean of its divisors is an integer number (29449537914).

Almost surely, 2^117755188247 is an apocalyptic number.

117755188247 is a deficient number, since it is larger than the sum of its proper divisors (42963409).

117755188247 is an equidigital number, since it uses as much as digits as its factorization.

117755188247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42963408.

The product of its digits is 4390400, while the sum is 56.

The spelling of 117755188247 in words is "one hundred seventeen billion, seven hundred fifty-five million, one hundred eighty-eight thousand, two hundred forty-seven".