12127747663 has 2 divisors, whose sum is σ = 12127747664.
Its totient is φ = 12127747662.
The previous prime is 12127747591. The next prime is 12127747699. The reversal of 12127747663 is 36674772121.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12127747663 - 213 = 12127739471 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12127147663) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063873831 + 6063873832.
It is an arithmetic number, because the mean of its divisors is an integer number (6063873832).
Almost surely, 212127747663 is an apocalyptic number.
12127747663 is a deficient number, since it is larger than the sum of its proper divisors (1).
12127747663 is an equidigital number, since it uses as much as digits as its factorization.
12127747663 is an evil number, because the sum of its binary digits is even.
The product of its digits is 592704, while the sum is 46.
The spelling of 12127747663 in words is "twelve billion, one hundred twenty-seven million, seven hundred forty-seven thousand, six hundred sixty-three".