12470784517 has 2 divisors, whose sum is σ = 12470784518. Its totient is φ = 12470784516.

The previous prime is 12470784509. The next prime is 12470784559. The reversal of 12470784517 is 71548707421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12324108196 + 146676321 = 111014^2 + 12111^2 .

It is a cyclic number.

It is not a de Polignac number, because 12470784517 - 2³ = 12470784509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12470784017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6235392258 + 6235392259.

It is an arithmetic number, because the mean of its divisors is an integer number (6235392259).

Almost surely, 2^12470784517 is an apocalyptic number.

It is an amenable number.

12470784517 is a deficient number, since it is larger than the sum of its proper divisors (1).

12470784517 is an equidigital number, since it uses as much as digits as its factorization.

12470784517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 439040, while the sum is 46.

The spelling of 12470784517 in words is "twelve billion, four hundred seventy million, seven hundred eighty-four thousand, five hundred seventeen".