12027879787 has 8 divisors (see below), whose sum is σ = 14995798272. Its totient is φ = 9372373800.

The previous prime is 12027879769. The next prime is 12027879827. The reversal of 12027879787 is 78797872021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12027879787 - 2¹¹ = 12027877739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12027879767) 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 7 ways as a sum of consecutive naturals, for example, 78103039 + ... + 78103192.

It is an arithmetic number, because the mean of its divisors is an integer number (1874474784).

Almost surely, 2^12027879787 is an apocalyptic number.

12027879787 is a deficient number, since it is larger than the sum of its proper divisors (2967918485).

12027879787 is a wasteful number, since it uses less digits than its factorization.

12027879787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156206249.

The product of its (nonzero) digits is 5531904, while the sum is 58.

The spelling of 12027879787 in words is "twelve billion, twenty-seven million, eight hundred seventy-nine thousand, seven hundred eighty-seven".