111384578388 has 48 divisors (see below), whose sum is σ = 274630164480. Its totient is φ = 35064373344.

The previous prime is 111384578387. The next prime is 111384578423. The reversal of 111384578388 is 883875483111.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111384578387) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2532420 + ... + 2576027.

It is an arithmetic number, because the mean of its divisors is an integer number (5721461760).

Almost surely, 2^111384578388 is an apocalyptic number.

It is an amenable number.

111384578388 is an abundant number, since it is smaller than the sum of its proper divisors (163245586092).

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

111384578388 is a wasteful number, since it uses less digits than its factorization.

111384578388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108556 (or 5108554 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 57.

The spelling of 111384578388 in words is "one hundred eleven billion, three hundred eighty-four million, five hundred seventy-eight thousand, three hundred eighty-eight".