117833447427 has 4 divisors (see below), whose sum is σ = 157111263240. Its totient is φ = 78555631616.

The previous prime is 117833447411. The next prime is 117833447461. The reversal of 117833447427 is 724744338711.

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 117833447427 - 2⁴ = 117833447411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117833447427.

It is not an unprimeable number, because it can be changed into a prime (117833447477) 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, 19638907902 + ... + 19638907907.

It is an arithmetic number, because the mean of its divisors is an integer number (39277815810).

Almost surely, 2^117833447427 is an apocalyptic number.

117833447427 is a deficient number, since it is larger than the sum of its proper divisors (39277815813).

117833447427 is an equidigital number, since it uses as much as digits as its factorization.

117833447427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39277815812.

The product of its digits is 3161088, while the sum is 51.

The spelling of 117833447427 in words is "one hundred seventeen billion, eight hundred thirty-three million, four hundred forty-seven thousand, four hundred twenty-seven".