117723327257 has 4 divisors (see below), whose sum is σ = 117724047120. Its totient is φ = 117722607396.

The previous prime is 117723327203. The next prime is 117723327301. The reversal of 117723327257 is 752723327711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 752723327711 = 67 ⋅11234676533.

It is a cyclic number.

It is not a de Polignac number, because 117723327257 - 2¹⁰ = 117723326233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117723320257) 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, 16838 + ... + 485520.

It is an arithmetic number, because the mean of its divisors is an integer number (29431011780).

Almost surely, 2^117723327257 is an apocalyptic number.

It is an amenable number.

117723327257 is a deficient number, since it is larger than the sum of its proper divisors (719863).

117723327257 is an equidigital number, since it uses as much as digits as its factorization.

117723327257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719862.

The product of its digits is 864360, while the sum is 47.

The spelling of 117723327257 in words is "one hundred seventeen billion, seven hundred twenty-three million, three hundred twenty-seven thousand, two hundred fifty-seven".