111675787987 has 8 divisors (see below), whose sum is σ = 114418815840. Its totient is φ = 108933675840.

The previous prime is 111675787981. The next prime is 111675787999. The reversal of 111675787987 is 789787576111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111675787987 - 2⁷ = 111675787859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111675787981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21298 + ... + 473080.

It is an arithmetic number, because the mean of its divisors is an integer number (14302351980).

Almost surely, 2^111675787987 is an apocalyptic number.

111675787987 is a deficient number, since it is larger than the sum of its proper divisors (2743027853).

111675787987 is an equidigital number, since it uses as much as digits as its factorization.

111675787987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457853.

The product of its digits is 41489280, while the sum is 67.

The spelling of 111675787987 in words is "one hundred eleven billion, six hundred seventy-five million, seven hundred eighty-seven thousand, nine hundred eighty-seven".