11988961238 has 16 divisors (see below), whose sum is σ = 19046040624. Its totient is φ = 5640456960.

The previous prime is 11988961169. The next prime is 11988961241. The reversal of 11988961238 is 83216988911.

11988961238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 101306 + ... + 185042.

It is an arithmetic number, because the mean of its divisors is an integer number (1190377539).

Almost surely, 2^11988961238 is an apocalyptic number.

11988961238 is a deficient number, since it is larger than the sum of its proper divisors (7057079386).

11988961238 is a wasteful number, since it uses less digits than its factorization.

11988961238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87967.

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

The spelling of 11988961238 in words is "eleven billion, nine hundred eighty-eight million, nine hundred sixty-one thousand, two hundred thirty-eight".