112345556789 has 4 divisors (see below), whose sum is σ = 115969607040. Its totient is φ = 108721506540.

The previous prime is 112345556777. The next prime is 112345556797. The reversal of 112345556789 is 987655543211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 987655543211 = 23 ⋅42941545357.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112345556789 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 (112345556759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1812025079 + ... + 1812025140.

It is an arithmetic number, because the mean of its divisors is an integer number (28992401760).

Almost surely, 2^112345556789 is an apocalyptic number.

It is an amenable number.

112345556789 is a deficient number, since it is larger than the sum of its proper divisors (3624050251).

112345556789 is an equidigital number, since it uses as much as digits as its factorization.

112345556789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624050250.

The product of its digits is 9072000, while the sum is 56.

The spelling of 112345556789 in words is "one hundred twelve billion, three hundred forty-five million, five hundred fifty-six thousand, seven hundred eighty-nine".