112345666789 has 4 divisors (see below), whose sum is σ = 118258596640. Its totient is φ = 106432736940.

The previous prime is 112345666781. The next prime is 112345666793. The reversal of 112345666789 is 987666543211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112345666789 - 2³ = 112345666781 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112345666781) 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, 2956464897 + ... + 2956464934.

It is an arithmetic number, because the mean of its divisors is an integer number (29564649160).

Almost surely, 2^112345666789 is an apocalyptic number.

112345666789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

112345666789 is a deficient number, since it is larger than the sum of its proper divisors (5912929851).

112345666789 is an equidigital number, since it uses as much as digits as its factorization.

112345666789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5912929850.

The product of its digits is 13063680, while the sum is 58.

The spelling of 112345666789 in words is "one hundred twelve billion, three hundred forty-five million, six hundred sixty-six thousand, seven hundred eighty-nine".