118781043128 has 64 divisors (see below), whose sum is σ = 258831832320. Its totient is φ = 50503564800.

The previous prime is 118781043113. The next prime is 118781043151. The reversal of 118781043128 is 821340187811.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293 + ... + 487403.

It is an arithmetic number, because the mean of its divisors is an integer number (4044247380).

Almost surely, 2^118781043128 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 118781043128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129415916160).

118781043128 is an abundant number, since it is smaller than the sum of its proper divisors (140050789192).

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

118781043128 is a wasteful number, since it uses less digits than its factorization.

118781043128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487308 (or 487304 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 44.

The spelling of 118781043128 in words is "one hundred eighteen billion, seven hundred eighty-one million, forty-three thousand, one hundred twenty-eight".