117648618 has 8 divisors (see below), whose sum is σ = 235297248. Its totient is φ = 39216204.

The previous prime is 117648581. The next prime is 117648623. The reversal of 117648618 is 816846711.

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

117648618 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 117648618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9804046 + ... + 9804057.

It is an arithmetic number, because the mean of its divisors is an integer number (29412156).

Almost surely, 2^117648618 is an apocalyptic number.

117648618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117648618 is a wasteful number, since it uses less digits than its factorization.

117648618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19608108.

The product of its digits is 64512, while the sum is 42.

The square root of 117648618 is about 10846.5947651786. The cubic root of 117648618 is about 489.9994696648. Note that the first 3 decimals are identical.

It can be divided in two parts, 1176 and 48618, that added together give a palindrome (49794).

The spelling of 117648618 in words is "one hundred seventeen million, six hundred forty-eight thousand, six hundred eighteen".