117763891128 has 144 divisors (see below), whose sum is σ = 355732879320. Its totient is φ = 34985325312.

The previous prime is 117763891111. The next prime is 117763891151. The reversal of 117763891128 is 821198367711.

It is a super-2 number, since 2×117763891128² (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 35 ways as a sum of consecutive naturals, for example, 712375 + ... + 861977.

Almost surely, 2^117763891128 is an apocalyptic number.

117763891128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117763891128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177866439660).

117763891128 is an abundant number, since it is smaller than the sum of its proper divisors (237968988192).

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

117763891128 is a wasteful number, since it uses less digits than its factorization.

117763891128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149686 (or 149650 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The spelling of 117763891128 in words is "one hundred seventeen billion, seven hundred sixty-three million, eight hundred ninety-one thousand, one hundred twenty-eight".