11234455667789 has 4 divisors (see below), whose sum is σ = 11236652906556. Its totient is φ = 11232258429024.

The previous prime is 11234455667753. The next prime is 11234455667803. The reversal of 11234455667789 is 98776655443211.

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 178365162889 + 11056090504900 = 422333^2 + 3325070^2 .

It is a cyclic number.

It is not a de Polignac number, because 11234455667789 - 2³⁶ = 11165736191053 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 (11234455667719) 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, 1098611714 + ... + 1098621939.

It is an arithmetic number, because the mean of its divisors is an integer number (2809163226639).

Almost surely, 2^{11234455667789} is an apocalyptic number.

It is an amenable number.

11234455667789 is a deficient number, since it is larger than the sum of its proper divisors (2197238767).

11234455667789 is an equidigital number, since it uses as much as digits as its factorization.

11234455667789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197238766.

The product of its digits is 304819200, while the sum is 68.

The spelling of 11234455667789 in words is "eleven trillion, two hundred thirty-four billion, four hundred fifty-five million, six hundred sixty-seven thousand, seven hundred eighty-nine".