11139319861 has 8 divisors (see below), whose sum is σ = 11372716544. Its totient is φ = 10907561520.

The previous prime is 11139319847. The next prime is 11139319883. The reversal of 11139319861 is 16891393111.

11139319861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11139319861 - 2⁹ = 11139319349 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 (11139319801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395841 + ... + 423046.

It is an arithmetic number, because the mean of its divisors is an integer number (1421589568).

Almost surely, 2^11139319861 is an apocalyptic number.

It is an amenable number.

11139319861 is a deficient number, since it is larger than the sum of its proper divisors (233396683).

11139319861 is an equidigital number, since it uses as much as digits as its factorization.

11139319861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819171.

The product of its digits is 34992, while the sum is 43.

The spelling of 11139319861 in words is "eleven billion, one hundred thirty-nine million, three hundred nineteen thousand, eight hundred sixty-one".