117255387648 has 480 divisors, whose sum is σ = 399167201664. Its totient is φ = 29854531584.

The previous prime is 117255387637. The next prime is 117255387649. The reversal of 117255387648 is 846783552711.

117255387648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (117255387649) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65984136 + ... + 65985912.

Almost surely, 2^117255387648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117255387648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199583600832).

117255387648 is an abundant number, since it is smaller than the sum of its proper divisors (281911814016).

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

117255387648 is a wasteful number, since it uses less digits than its factorization.

117255387648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1825 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The spelling of 117255387648 in words is "one hundred seventeen billion, two hundred fifty-five million, three hundred eighty-seven thousand, six hundred forty-eight".