12478211327 has 8 divisors (see below), whose sum is σ = 13333438800. Its totient is φ = 11636452224.

The previous prime is 12478211309. The next prime is 12478211353. The reversal of 12478211327 is 72311287421.

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 12478211327 - 2⁸ = 12478211071 is a prime.

It is a super-2 number, since 2×12478211327² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478211377) 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, 3365177 + ... + 3368882.

It is an arithmetic number, because the mean of its divisors is an integer number (1666679850).

Almost surely, 2^12478211327 is an apocalyptic number.

12478211327 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12478211327 is a deficient number, since it is larger than the sum of its proper divisors (855227473).

12478211327 is a wasteful number, since it uses less digits than its factorization.

12478211327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734185.

The product of its digits is 37632, while the sum is 38.

Adding to 12478211327 its reverse (72311287421), we get a palindrome (84789498748).

The spelling of 12478211327 in words is "twelve billion, four hundred seventy-eight million, two hundred eleven thousand, three hundred twenty-seven".