12478661183 has 2 divisors, whose sum is σ = 12478661184. Its totient is φ = 12478661182.

The previous prime is 12478661177. The next prime is 12478661191. The reversal of 12478661183 is 38116687421.

It is a weak prime.

It is an emirp because it is prime and its reverse (38116687421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12478661183 - 2⁶ = 12478661119 is a prime.

It is a super-2 number, since 2×12478661183² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12478661123) 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 as a sum of consecutive naturals, namely, 6239330591 + 6239330592.

It is an arithmetic number, because the mean of its divisors is an integer number (6239330592).

Almost surely, 2^12478661183 is an apocalyptic number.

12478661183 is a deficient number, since it is larger than the sum of its proper divisors (1).

12478661183 is an equidigital number, since it uses as much as digits as its factorization.

12478661183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 47.

The spelling of 12478661183 in words is "twelve billion, four hundred seventy-eight million, six hundred sixty-one thousand, one hundred eighty-three".