118381937394 has 96 divisors (see below), whose sum is σ = 287066198016. Its totient is φ = 32414286240.

The previous prime is 118381937383. The next prime is 118381937413. The reversal of 118381937394 is 493739183811.

It is a super-2 number, since 2×118381937394² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 875689 + ... + 1001795.

It is an arithmetic number, because the mean of its divisors is an integer number (2990272896).

Almost surely, 2^118381937394 is an apocalyptic number.

118381937394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118381937394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143533099008).

118381937394 is an abundant number, since it is smaller than the sum of its proper divisors (168684260622).

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

118381937394 is a wasteful number, since it uses less digits than its factorization.

118381937394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126260 (or 126253 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The spelling of 118381937394 in words is "one hundred eighteen billion, three hundred eighty-one million, nine hundred thirty-seven thousand, three hundred ninety-four".