117365570838 has 128 divisors (see below), whose sum is σ = 274447733760. Its totient is φ = 37106657280.

The previous prime is 117365570827. The next prime is 117365570857. The reversal of 117365570838 is 838075563711.

117365570838 is a `hidden beast` number, since 1 + 1 + 7 + 3 + 6 + 557 + 0 + 83 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 100915645 + ... + 100916807.

It is an arithmetic number, because the mean of its divisors is an integer number (2144122920).

Almost surely, 2^117365570838 is an apocalyptic number.

117365570838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 117365570838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137223866880).

117365570838 is an abundant number, since it is smaller than the sum of its proper divisors (157082162922).

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

117365570838 is a wasteful number, since it uses less digits than its factorization.

117365570838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811 (or 1805 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 117365570838 in words is "one hundred seventeen billion, three hundred sixty-five million, five hundred seventy thousand, eight hundred thirty-eight".