111268489538 has 12 divisors (see below), whose sum is σ = 171535539042. Its totient is φ = 54130615200.

The previous prime is 111268489523. The next prime is 111268489669. The reversal of 111268489538 is 835984862111.

It can be written as a sum of positive squares in 3 ways, for example, as 109340664889 + 1927824649 = 330667^2 + 43907^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20316563 + ... + 20322038.

Almost surely, 2^111268489538 is an apocalyptic number.

111268489538 is a deficient number, since it is larger than the sum of its proper divisors (60267049504).

111268489538 is an equidigital number, since it uses as much as digits as its factorization.

111268489538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40638677 (or 40638640 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 56.

The spelling of 111268489538 in words is "one hundred eleven billion, two hundred sixty-eight million, four hundred eighty-nine thousand, five hundred thirty-eight".