11912335579 has 4 divisors (see below), whose sum is σ = 11914078176. Its totient is φ = 11910592984.

The previous prime is 11912335577. The next prime is 11912335601. The reversal of 11912335579 is 97553321911.

11912335579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97553321911 = 127 ⋅768136393.

It is a cyclic number.

It is not a de Polignac number, because 11912335579 - 2¹ = 11912335577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11912335577) 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 3 ways as a sum of consecutive naturals, for example, 861004 + ... + 874729.

It is an arithmetic number, because the mean of its divisors is an integer number (2978519544).

Almost surely, 2^11912335579 is an apocalyptic number.

11912335579 is a deficient number, since it is larger than the sum of its proper divisors (1742597).

11912335579 is an equidigital number, since it uses as much as digits as its factorization.

11912335579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742596.

The product of its digits is 255150, while the sum is 46.

The spelling of 11912335579 in words is "eleven billion, nine hundred twelve million, three hundred thirty-five thousand, five hundred seventy-nine".