12466667789 has 2 divisors, whose sum is σ = 12466667790. Its totient is φ = 12466667788.

The previous prime is 12466667777. The next prime is 12466667803. The reversal of 12466667789 is 98776666421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12441617764 + 25050025 = 111542^2 + 5005^2 .

It is a cyclic number.

It is not a de Polignac number, because 12466667789 - 2⁸ = 12466667533 is a prime.

It is a super-2 number, since 2×12466667789² (a number of 21 digits) contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12466667189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6233333894 + 6233333895.

It is an arithmetic number, because the mean of its divisors is an integer number (6233333895).

Almost surely, 2^12466667789 is an apocalyptic number.

It is an amenable number.

12466667789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12466667789 is an equidigital number, since it uses as much as digits as its factorization.

12466667789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 62.

The spelling of 12466667789 in words is "twelve billion, four hundred sixty-six million, six hundred sixty-seven thousand, seven hundred eighty-nine".