117895667279 has 4 divisors (see below), whose sum is σ = 126964564776. Its totient is φ = 108826769784.

The previous prime is 117895667249. The next prime is 117895667297. The reversal of 117895667279 is 972766598711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 972766598711 = 223 ⋅4362182057.

It is a cyclic number.

It is not a de Polignac number, because 117895667279 - 2¹² = 117895663183 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 (117895667249) 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, 4534448729 + ... + 4534448754.

It is an arithmetic number, because the mean of its divisors is an integer number (31741141194).

Almost surely, 2^117895667279 is an apocalyptic number.

117895667279 is a deficient number, since it is larger than the sum of its proper divisors (9068897497).

117895667279 is an equidigital number, since it uses as much as digits as its factorization.

117895667279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9068897496.

The product of its digits is 80015040, while the sum is 68.

The spelling of 117895667279 in words is "one hundred seventeen billion, eight hundred ninety-five million, six hundred sixty-seven thousand, two hundred seventy-nine".