12005363649977 has 2 divisors, whose sum is σ = 12005363649978. Its totient is φ = 12005363649976.

The previous prime is 12005363649913. The next prime is 12005363650061. The reversal of 12005363649977 is 77994636350021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10711357298041 + 1294006351936 = 3272821^2 + 1137544^2 .

It is a cyclic number.

It is not a de Polignac number, because 12005363649977 - 2⁶ = 12005363649913 is a prime.

It is not a weakly prime, because it can be changed into another prime (12005363649277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002681824988 + 6002681824989.

It is an arithmetic number, because the mean of its divisors is an integer number (6002681824989).

Almost surely, 2^{12005363649977} is an apocalyptic number.

It is an amenable number.

12005363649977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005363649977 is an equidigital number, since it uses as much as digits as its factorization.

12005363649977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51438240, while the sum is 62.

Adding to 12005363649977 its reverse (77994636350021), we get a palindrome (89999999999998).

The spelling of 12005363649977 in words is "twelve trillion, five billion, three hundred sixty-three million, six hundred forty-nine thousand, nine hundred seventy-seven".