117931531919136 has 384 divisors, whose sum is σ = 346264907788800. Its totient is φ = 34912036454400.

The previous prime is 117931531919119. The next prime is 117931531919143. The reversal of 117931531919136 is 631919135139711.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 117931531919136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1270096840 + ... + 1270189688.

It is an arithmetic number, because the mean of its divisors is an integer number (901731530700).

Almost surely, 2^{117931531919136} is an apocalyptic number.

117931531919136 is a gapful number since it is divisible by the number (16) 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 117931531919136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173132453894400).

117931531919136 is an abundant number, since it is smaller than the sum of its proper divisors (228333375869664).

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

117931531919136 is a wasteful number, since it uses less digits than its factorization.

117931531919136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93260 (or 93252 counting only the distinct ones).

The product of its digits is 4133430, while the sum is 60.

The spelling of 117931531919136 in words is "one hundred seventeen trillion, nine hundred thirty-one billion, five hundred thirty-one million, nine hundred nineteen thousand, one hundred thirty-six".