11884309439 has 4 divisors (see below), whose sum is σ = 11897413224. Its totient is φ = 11871205656.

The previous prime is 11884309403. The next prime is 11884309453. The reversal of 11884309439 is 93490348811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11884309439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11884309499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6550532 + ... + 6552345.

It is an arithmetic number, because the mean of its divisors is an integer number (2974353306).

Almost surely, 2^11884309439 is an apocalyptic number.

11884309439 is a deficient number, since it is larger than the sum of its proper divisors (13103785).

11884309439 is an equidigital number, since it uses as much as digits as its factorization.

11884309439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13103784.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 11884309439 in words is "eleven billion, eight hundred eighty-four million, three hundred nine thousand, four hundred thirty-nine".