12001085647 has 2 divisors, whose sum is σ = 12001085648. Its totient is φ = 12001085646.

The previous prime is 12001085639. The next prime is 12001085699. The reversal of 12001085647 is 74658010021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12001085647 - 2³ = 12001085639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001085617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000542823 + 6000542824.

It is an arithmetic number, because the mean of its divisors is an integer number (6000542824).

Almost surely, 2^12001085647 is an apocalyptic number.

12001085647 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001085647 is an equidigital number, since it uses as much as digits as its factorization.

12001085647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

Adding to 12001085647 its reverse (74658010021), we get a palindrome (86659095668).

The spelling of 12001085647 in words is "twelve billion, one million, eighty-five thousand, six hundred forty-seven".