11988320974 has 8 divisors (see below), whose sum is σ = 20551407408. Its totient is φ = 5137851840.

The previous prime is 11988320963. The next prime is 11988320977. The reversal of 11988320974 is 47902388911.

11988320974 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (11988320977) 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, 428154307 + ... + 428154334.

It is an arithmetic number, because the mean of its divisors is an integer number (2568925926).

Almost surely, 2^11988320974 is an apocalyptic number.

11988320974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11988320974 is a deficient number, since it is larger than the sum of its proper divisors (8563086434).

11988320974 is an equidigital number, since it uses as much as digits as its factorization.

11988320974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856308650.

The product of its (nonzero) digits is 870912, while the sum is 52.

The spelling of 11988320974 in words is "eleven billion, nine hundred eighty-eight million, three hundred twenty thousand, nine hundred seventy-four".