12178463873 has 2 divisors, whose sum is σ = 12178463874. Its totient is φ = 12178463872.

The previous prime is 12178463813. The next prime is 12178463903. The reversal of 12178463873 is 37836487121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10377904384 + 1800559489 = 101872^2 + 42433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12178463873 is a prime.

It is not a weakly prime, because it can be changed into another prime (12178463813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6089231936 + 6089231937.

It is an arithmetic number, because the mean of its divisors is an integer number (6089231937).

Almost surely, 2^12178463873 is an apocalyptic number.

It is an amenable number.

12178463873 is a deficient number, since it is larger than the sum of its proper divisors (1).

12178463873 is an equidigital number, since it uses as much as digits as its factorization.

12178463873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 50.

The spelling of 12178463873 in words is "twelve billion, one hundred seventy-eight million, four hundred sixty-three thousand, eight hundred seventy-three".