111750952889 has 4 divisors (see below), whose sum is σ = 111951583524. Its totient is φ = 111550322256.

The previous prime is 111750952811. The next prime is 111750952891. The reversal of 111750952889 is 988259057111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18310690489 + 93440262400 = 135317^2 + 305680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111750952889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111750952189) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 100314482 + ... + 100315595.

It is an arithmetic number, because the mean of its divisors is an integer number (27987895881).

Almost surely, 2^111750952889 is an apocalyptic number.

It is an amenable number.

111750952889 is a deficient number, since it is larger than the sum of its proper divisors (200630635).

111750952889 is an equidigital number, since it uses as much as digits as its factorization.

111750952889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200630634.

The product of its (nonzero) digits is 1814400, while the sum is 56.

The spelling of 111750952889 in words is "one hundred eleven billion, seven hundred fifty million, nine hundred fifty-two thousand, eight hundred eighty-nine".