11309347889 has 4 divisors (see below), whose sum is σ = 12924969024. Its totient is φ = 9693726756.

The previous prime is 11309347883. The next prime is 11309347897. The reversal of 11309347889 is 98874390311.

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 not a de Polignac number, because 11309347889 - 2²⁰ = 11308299313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11309347889.

It is not an unprimeable number, because it can be changed into a prime (11309347883) 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, 807810557 + ... + 807810570.

It is an arithmetic number, because the mean of its divisors is an integer number (3231242256).

Almost surely, 2^11309347889 is an apocalyptic number.

It is an amenable number.

11309347889 is a deficient number, since it is larger than the sum of its proper divisors (1615621135).

11309347889 is an equidigital number, since it uses as much as digits as its factorization.

11309347889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615621134.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 11309347889 in words is "eleven billion, three hundred nine million, three hundred forty-seven thousand, eight hundred eighty-nine".