12652218619 has 2 divisors, whose sum is σ = 12652218620. Its totient is φ = 12652218618.

The previous prime is 12652218613. The next prime is 12652218637. The reversal of 12652218619 is 91681225621.

12652218619 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 not a de Polignac number, because 12652218619 - 2³ = 12652218611 is a prime.

It is a super-2 number, since 2×12652218619² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12652218611) 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, 6326109309 + 6326109310.

It is an arithmetic number, because the mean of its divisors is an integer number (6326109310).

Almost surely, 2^12652218619 is an apocalyptic number.

12652218619 is a deficient number, since it is larger than the sum of its proper divisors (1).

12652218619 is an equidigital number, since it uses as much as digits as its factorization.

12652218619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 43.

The spelling of 12652218619 in words is "twelve billion, six hundred fifty-two million, two hundred eighteen thousand, six hundred nineteen".