12178471387 has 8 divisors (see below), whose sum is σ = 12477583440. Its totient is φ = 11881927200.

The previous prime is 12178471337. The next prime is 12178471397. The reversal of 12178471387 is 78317487121.

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 12178471387 - 2⁷ = 12178471259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12178471387.

It is not an unprimeable number, because it can be changed into a prime (12178471337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632364 + ... + 651337.

It is an arithmetic number, because the mean of its divisors is an integer number (1559697930).

Almost surely, 2^12178471387 is an apocalyptic number.

12178471387 is a deficient number, since it is larger than the sum of its proper divisors (299112053).

12178471387 is a wasteful number, since it uses less digits than its factorization.

12178471387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1283933.

The product of its digits is 526848, while the sum is 49.

The spelling of 12178471387 in words is "twelve billion, one hundred seventy-eight million, four hundred seventy-one thousand, three hundred eighty-seven".