111857919884 has 12 divisors (see below), whose sum is σ = 195845080200. Its totient is φ = 55902182688.

The previous prime is 111857919871. The next prime is 111857919893. The reversal of 111857919884 is 488919758111.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6684914 + ... + 6701625.

It is an arithmetic number, because the mean of its divisors is an integer number (16320423350).

Almost surely, 2^111857919884 is an apocalyptic number.

It is an amenable number.

111857919884 is a deficient number, since it is larger than the sum of its proper divisors (83987160316).

111857919884 is a wasteful number, since it uses less digits than its factorization.

111857919884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13388632 (or 13388630 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 62.

The spelling of 111857919884 in words is "one hundred eleven billion, eight hundred fifty-seven million, nine hundred nineteen thousand, eight hundred eighty-four".