113446777789 has 4 divisors (see below), whose sum is σ = 113631846556. Its totient is φ = 113261709024.

The previous prime is 113446777757. The next prime is 113446777799. The reversal of 113446777789 is 987777644311.

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 35388005689 + 78058772100 = 188117^2 + 279390^2 .

It is a cyclic number.

It is not a de Polignac number, because 113446777789 - 2⁵ = 113446777757 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 113446777789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113446777729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92533464 + ... + 92534689.

It is an arithmetic number, because the mean of its divisors is an integer number (28407961639).

Almost surely, 2^113446777789 is an apocalyptic number.

It is an amenable number.

113446777789 is a deficient number, since it is larger than the sum of its proper divisors (185068767).

113446777789 is an equidigital number, since it uses as much as digits as its factorization.

113446777789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185068766.

The product of its digits is 49787136, while the sum is 64.

The spelling of 113446777789 in words is "one hundred thirteen billion, four hundred forty-six million, seven hundred seventy-seven thousand, seven hundred eighty-nine".