12478283999 has 2 divisors, whose sum is σ = 12478284000. Its totient is φ = 12478283998.

The previous prime is 12478283989. The next prime is 12478284017. The reversal of 12478283999 is 99938287421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12478283999 - 2¹⁶ = 12478218463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12478283989) 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, 6239141999 + 6239142000.

It is an arithmetic number, because the mean of its divisors is an integer number (6239142000).

Almost surely, 2^12478283999 is an apocalyptic number.

12478283999 is a deficient number, since it is larger than the sum of its proper divisors (1).

12478283999 is an equidigital number, since it uses as much as digits as its factorization.

12478283999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15676416, while the sum is 62.

The spelling of 12478283999 in words is "twelve billion, four hundred seventy-eight million, two hundred eighty-three thousand, nine hundred ninety-nine".