117891858244 has 24 divisors (see below), whose sum is σ = 209518021440. Its totient is φ = 58036183584.

The previous prime is 117891858209. The next prime is 117891858341. The reversal of 117891858244 is 442858198711.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 755734 + ... + 898285.

It is an arithmetic number, because the mean of its divisors is an integer number (8729917560).

Almost surely, 2^117891858244 is an apocalyptic number.

It is an amenable number.

117891858244 is a deficient number, since it is larger than the sum of its proper divisors (91626163196).

117891858244 is a wasteful number, since it uses less digits than its factorization.

117891858244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654299 (or 1654297 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 58.

The spelling of 117891858244 in words is "one hundred seventeen billion, eight hundred ninety-one million, eight hundred fifty-eight thousand, two hundred forty-four".