11344577789 has 4 divisors (see below), whose sum is σ = 11394117660. Its totient is φ = 11295037920.

The previous prime is 11344577729. The next prime is 11344577809. The reversal of 11344577789 is 98777544311.

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 5816655289 + 5527922500 = 76267^2 + 74350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11344577789 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 (11344577729) 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, 24769592 + ... + 24770049.

It is an arithmetic number, because the mean of its divisors is an integer number (2848529415).

Almost surely, 2^11344577789 is an apocalyptic number.

It is an amenable number.

11344577789 is a deficient number, since it is larger than the sum of its proper divisors (49539871).

11344577789 is an equidigital number, since it uses as much as digits as its factorization.

11344577789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49539870.

The product of its digits is 5927040, while the sum is 56.

The spelling of 11344577789 in words is "eleven billion, three hundred forty-four million, five hundred seventy-seven thousand, seven hundred eighty-nine".