117658837906 has 8 divisors (see below), whose sum is σ = 176491241100. Its totient is φ = 58828424208.

The previous prime is 117658837871. The next prime is 117658837909. The reversal of 117658837906 is 609738856711.

It can be written as a sum of positive squares in 2 ways, for example, as 106172357281 + 11486480625 = 325841^2 + 107175^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (117658837909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339501 + ... + 592096.

Almost surely, 2^117658837906 is an apocalyptic number.

117658837906 is a deficient number, since it is larger than the sum of its proper divisors (58832403194).

117658837906 is an equidigital number, since it uses as much as digits as its factorization.

117658837906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994748.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The spelling of 117658837906 in words is "one hundred seventeen billion, six hundred fifty-eight million, eight hundred thirty-seven thousand, nine hundred six".