11440342289 has 4 divisors (see below), whose sum is σ = 11441223024. Its totient is φ = 11439461556.

The previous prime is 11440342279. The next prime is 11440342297. The reversal of 11440342289 is 98224304411.

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.

It is a cyclic number.

It is not a de Polignac number, because 11440342289 - 2⁸ = 11440342033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11440342229) 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, 420587 + ... + 446960.

It is an arithmetic number, because the mean of its divisors is an integer number (2860305756).

Almost surely, 2^11440342289 is an apocalyptic number.

It is an amenable number.

11440342289 is a deficient number, since it is larger than the sum of its proper divisors (880735).

11440342289 is an equidigital number, since it uses as much as digits as its factorization.

11440342289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880734.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 11440342289 in words is "eleven billion, four hundred forty million, three hundred forty-two thousand, two hundred eighty-nine".