11223344456789 has 8 divisors (see below), whose sum is σ = 12088792071840. Its totient is φ = 10385371369296.

The previous prime is 11223344456777. The next prime is 11223344456837. The reversal of 11223344456789 is 98765444332211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11223344456789 - 2⁴ = 11223344456773 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 (11223344456689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6868631042 + ... + 6868632675.

It is an arithmetic number, because the mean of its divisors is an integer number (1511099008980).

Almost surely, 2^{11223344456789} is an apocalyptic number.

11223344456789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11223344456789 is a deficient number, since it is larger than the sum of its proper divisors (865447615051).

11223344456789 is a wasteful number, since it uses less digits than its factorization.

11223344456789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13737263779.

The product of its digits is 34836480, while the sum is 59.

The spelling of 11223344456789 in words is "eleven trillion, two hundred twenty-three billion, three hundred forty-four million, four hundred fifty-six thousand, seven hundred eighty-nine".