117786656629 has 4 divisors (see below), whose sum is σ = 118437411820. Its totient is φ = 117135901440.

The previous prime is 117786656593. The next prime is 117786656651. The reversal of 117786656629 is 926656687711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42380398225 + 75406258404 = 205865^2 + 274602^2 .

It is a cyclic number.

It is not a de Polignac number, because 117786656629 - 2¹¹ = 117786654581 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 (117786666629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325377324 + ... + 325377685.

It is an arithmetic number, because the mean of its divisors is an integer number (29609352955).

Almost surely, 2^117786656629 is an apocalyptic number.

It is an amenable number.

117786656629 is a deficient number, since it is larger than the sum of its proper divisors (650755191).

117786656629 is an equidigital number, since it uses as much as digits as its factorization.

117786656629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650755190.

The product of its digits is 45722880, while the sum is 64.

The spelling of 117786656629 in words is "one hundred seventeen billion, seven hundred eighty-six million, six hundred fifty-six thousand, six hundred twenty-nine".