11712085939 has 4 divisors (see below), whose sum is σ = 11713312656. Its totient is φ = 11710859224.

The previous prime is 11712085937. The next prime is 11712085943. The reversal of 11712085939 is 93958021711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93958021711 = 67 ⋅1402358533.

It is a cyclic number.

It is not a de Polignac number, because 11712085939 - 2¹ = 11712085937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11712085937) 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, 598924 + ... + 618169.

It is an arithmetic number, because the mean of its divisors is an integer number (2928328164).

Almost surely, 2^11712085939 is an apocalyptic number.

11712085939 is a deficient number, since it is larger than the sum of its proper divisors (1226717).

11712085939 is an equidigital number, since it uses as much as digits as its factorization.

11712085939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226716.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 11712085939 in words is "eleven billion, seven hundred twelve million, eighty-five thousand, nine hundred thirty-nine".