117318648678 has 128 divisors (see below), whose sum is σ = 303543189504. Its totient is φ = 29335910400.

The previous prime is 117318648631. The next prime is 117318648691. The reversal of 117318648678 is 876846813711.

It is a super-2 number, since 2×117318648678² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2742925 + ... + 2785367.

It is an arithmetic number, because the mean of its divisors is an integer number (2371431168).

Almost surely, 2^117318648678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117318648678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151771594752).

117318648678 is an abundant number, since it is smaller than the sum of its proper divisors (186224540826).

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

117318648678 is a wasteful number, since it uses less digits than its factorization.

117318648678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42690.

The product of its digits is 10838016, while the sum is 60.

The spelling of 117318648678 in words is "one hundred seventeen billion, three hundred eighteen million, six hundred forty-eight thousand, six hundred seventy-eight".