12489186811 has 2 divisors, whose sum is σ = 12489186812. Its totient is φ = 12489186810.

The previous prime is 12489186779. The next prime is 12489186817. The reversal of 12489186811 is 11868198421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12489186811 - 2⁵ = 12489186779 is a prime.

It is not a weakly prime, because it can be changed into another prime (12489186817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6244593405 + 6244593406.

It is an arithmetic number, because the mean of its divisors is an integer number (6244593406).

Almost surely, 2^12489186811 is an apocalyptic number.

12489186811 is a deficient number, since it is larger than the sum of its proper divisors (1).

12489186811 is an equidigital number, since it uses as much as digits as its factorization.

12489186811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 49.

The spelling of 12489186811 in words is "twelve billion, four hundred eighty-nine million, one hundred eighty-six thousand, eight hundred eleven".