11384861791 has 4 divisors (see below), whose sum is σ = 11386167400. Its totient is φ = 11383556184.

The previous prime is 11384861777. The next prime is 11384861861. The reversal of 11384861791 is 19716848311.

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

It is a cyclic number.

It is not a de Polignac number, because 11384861791 - 2¹¹ = 11384859743 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 (11384861771) 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, 639636 + ... + 657193.

It is an arithmetic number, because the mean of its divisors is an integer number (2846541850).

Almost surely, 2^11384861791 is an apocalyptic number.

11384861791 is a deficient number, since it is larger than the sum of its proper divisors (1305609).

11384861791 is an equidigital number, since it uses as much as digits as its factorization.

11384861791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305608.

The product of its digits is 290304, while the sum is 49.

The spelling of 11384861791 in words is "eleven billion, three hundred eighty-four million, eight hundred sixty-one thousand, seven hundred ninety-one".