117182711779 has 4 divisors (see below), whose sum is σ = 133923099184. Its totient is φ = 100442324376.

The previous prime is 117182711777. The next prime is 117182711791. The reversal of 117182711779 is 977117281711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977117281711 = 981137 ⋅995903.

It is a cyclic number.

It is not a de Polignac number, because 117182711779 - 2¹ = 117182711777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117182711777) 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, 8370193692 + ... + 8370193705.

It is an arithmetic number, because the mean of its divisors is an integer number (33480774796).

Almost surely, 2^117182711779 is an apocalyptic number.

117182711779 is a deficient number, since it is larger than the sum of its proper divisors (16740387405).

117182711779 is an equidigital number, since it uses as much as digits as its factorization.

117182711779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16740387404.

The product of its digits is 345744, while the sum is 52.

The spelling of 117182711779 in words is "one hundred seventeen billion, one hundred eighty-two million, seven hundred eleven thousand, seven hundred seventy-nine".