11968218938 has 16 divisors (see below), whose sum is σ = 19362641760. Its totient is φ = 5515403376.

The previous prime is 11968218931. The next prime is 11968218953. The reversal of 11968218938 is 83981286911.

11968218938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11968218931) 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, 332120 + ... + 366387.

It is an arithmetic number, because the mean of its divisors is an integer number (1210165110).

Almost surely, 2^11968218938 is an apocalyptic number.

11968218938 is a deficient number, since it is larger than the sum of its proper divisors (7394422822).

11968218938 is a wasteful number, since it uses less digits than its factorization.

11968218938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699181.

The product of its digits is 1492992, while the sum is 56.

The spelling of 11968218938 in words is "eleven billion, nine hundred sixty-eight million, two hundred eighteen thousand, nine hundred thirty-eight".