12471771959 has 2 divisors, whose sum is σ = 12471771960. Its totient is φ = 12471771958.

The previous prime is 12471771947. The next prime is 12471771973. The reversal of 12471771959 is 95917717421.

12471771959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12471771959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12471771959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12471771989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6235885979 + 6235885980.

It is an arithmetic number, because the mean of its divisors is an integer number (6235885980).

Almost surely, 2^12471771959 is an apocalyptic number.

12471771959 is a deficient number, since it is larger than the sum of its proper divisors (1).

12471771959 is an equidigital number, since it uses as much as digits as its factorization.

12471771959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1111320, while the sum is 53.

The spelling of 12471771959 in words is "twelve billion, four hundred seventy-one million, seven hundred seventy-one thousand, nine hundred fifty-nine".